How Police Captured Colorado's Smartest Killer

This is the mother of 43-year-old. Crystal Krug. In a few seconds, she's. going to find Crystal's lifeless body. inside this very garage. >> Hello.

And this is Daniel Krug, the man who. killed her. He's heading in for another. normal workday just minutes after. leaving his wife's lifeless [music]. body hidden in the garage of their own. home. Oh [ __ ] Holy [ __ ] For the last 4. months, this man has been engineering. the most calculated homicide plot. Colorado has ever seen. Creating fake. identities, manipulating Crystal's. children, and setting up the perfect.

scapegoat to take the blame. He believes. his plan is bulletproof, that police. will spend weeks chasing a ghost and. eventually arrest someone else for the. murder he committed. And despite nearly. perfect detective work, his plan works. exactly the way he intended. >> Husband said there was a dude who's been. stalking her and threatened to kidnap. her. >> Oh my god. [laughter] This can't be. true. I was here before.

[screaming]. >> Henry. >> Yeah. Nice to meet you. Good to meet. you. Talk to you. I kind of have an idea. what's going on. >> Yes. [snorts]. >> This is Crystal Kug months before her. murder. She lives here with her husband. Daniel Kug and their three children. Both Crystal and her husband are well. educated and seem to have built a. comfortable life together with their.

kids. But behind closed doors, something. dark is happening that will destroy this. beautiful family. All because Crystal's. been dealing with a stalker obsessed. with her, sending her constant threats. and claiming to watch her every move. This officer is here to check her car. for GPS trackers or anything that could. explain how this stalker keeps finding. her. In reality, the stalker is much. closer than anyone could have imagined. >> Um, you can see like it's all the dirty.

segments and flood marks, but. >> like my street looks like this all the. time. There's no one out there. Like I. know the normal cars, >> so I don't know where he's following it. from. >> Okay. >> I only assume a tracker. >> Nothing jumps out at me. >> I know there I'm hoping it's just going. to mess with me. The officer continues. searching the vehicle top to bottom, but. finds nothing suspicious. So before. leaving, he offers Crystal a few safety. recommendations and reassures her that.

they'll keep looking into her case. Not long in the course of the. investigation, Broomfield police receive. another call. This time from Crystal's. husband, Daniel, reporting a [music]. break-in at his home. An officer is. dispatched to check things out. Unknowingly, this [music] encounter will. be the start of one of the most. calculated murders the United States has. ever seen. >> How's it going? >> Yeah, definitely. I'm Officer Johnson. >> I'm Dan.

>> Nice to meet you, >> Johnson. Nice to meet you. >> So, as [music] I pulled in, uh, I saw. someone run out, jump over my gate, [music] okay, >> and take off that way. >> Got it. I didn't think to call you until. my my wife got home recently and we. realized the spare key that we keep in. the garage isn't there. >> Okay. >> According to Daniel, the only thing. that's gone is their spare house key. If. someone stole that, it means they aren't. done and might have plans to come back.

at some point. The officer advises. Daniel to change their locks immediately. while police look into who this intruder. might be. What no one realizes tonight. is that this is no random incident. It's. the [music] opening move in a plan. that's been forming for months. And this. break-in is just step one. 9 days after Daniel reports the breakin, his wife Crystal [music] wakes up to. another uneasy morning. For weeks now,

she's been receiving strange anonymous. messages and a growing sense that. someone [music] out there has an eye on. her. Until now, none of it had a name. attached, but a faceless presence that. kept getting closer. But today, that. changes. As Crystal gets the kids ready. for school, makes her morning coffee, and heads out for work, her phone. buzzes. She glances at the screen and. sees a name she hasn't thought about in. more than 20 years. Jack Anthony.

Holland, a man she dated briefly as a. teenager. The message is short, crude, completely out of nowhere. Hi Crystal, it's Anthony. Hope it's okay. I looked. you up. I go to Boulder every few weeks. and thought we could hook up. You game? At first, she didn't think much of it. The two last spoke years ago, [music]. and even then, he was harmless. So, she. ignores it and moves on. But the next. day, everything changes. Are you there? You should say yes. [music] when I offer pity. Whatever. I.

saw your pics. You got fat. You should. yourself. Saw you at the dentist today. Your license plate expired. Got to fix. that. Suddenly, Crystal's fear becomes. reality. And she begins living with the. terrifying possibility that she's being. watched. And now she's certain. is the one who's been harassing her for. weeks. She becomes hypervigilant, installs cameras around the home, dash. cams in her car, and starts carrying a.

concealed handgun everywhere she goes. By late October, Crystal's barely. sleeping. She keeps a spreadsheet of her. stalker log documenting every message. she gets. Then, almost a month later, a. new email from Anthony confirms her. worst fears. This your husband? Drives. like slow old lady. He needs to drive. safe. The email comes with an attached. photo showing her husband, Daniel, at. his workplace. Now, the stalker isn't. just targeting Crystal. He's coming.

after her family. Crystal realizes she. can't handle this alone, so she hires a. private investigator to track down. Anony's addresses and digital history. Then, on Halloween night, she calls the. police. >> So, how can I help you tonight? What's. going on? Yeah. So, I have an ex from a. very long time ago who has occasionally. down me on social media and it's never. been an issue until this month. So, this. month I have received numerous text.

messages and then today I got an email. that is very threatening and it. escalated to the point that he took a. recent picture of my husband at his work. location. So, the stocking is getting a. little too aggressive at this point in. time. So, my last contact with this. individual was 5 years ago where I told. him I was happily married. I had no. interest in what he kept contacting me. He kind of blew things up and then. blocked me. I blocked him. Haven't heard. from him since. [music]. >> After explaining everything to the.

officer, she documents each detail and. forwards the case to the department's. investigative unit. Within hours, the. file lands on the desk of Detective. Andrew Martinez, a seasoned investigator. who's worked some of Broomfield's. toughest cases, including abductions and. violent crimes. Martinez schedules a. formal meeting with Crystal for the. following week, hoping to get a clearer. picture of what exactly is happening and. who this Anthony really is. When she. sits down with Martinez, the situation.

has already escalated far beyond what. Crystal first reported. So, I mean, like. he saw like full pictures of my family, of my kids. Like, I locked down my. protocol real fast um after this because. it was pretty alarming, right? Where. he's like, "We're meant to be together.". And my family loves that we're talking. I'm like, "Wo, you think that we're like. in a relationship?" So, I shut it down. real hard. I said, "This is really. creepy for me. You need to stop." And he. got like real emotional and then blocked. me. I'm like, "Good." And I blocked him. and like I'm like And then I shut down.

Facebook entirely. Um, the one. development that I have, um, I did get. the full-blown report from the PI. The. problem, and you'll see this in this. report, there are tons of phone numbers. associated with him. There are tons of. addresses. He moves everywhere and. between like three different states. >> As Crystal walks the detective through. her evidence, two details immediately. stand out. First, her stalker isn't just. texting her from random numbers. He's. using multiple phone lines and different.

digital identities, finding ways to. reach her even after she changes her. information. Whoever this is, they're. persistent, resourceful, and. frighteningly determined. Second, her. ex-boyfriend Anthony Holland is tied to. several addresses and multiple phone. numbers. Whether it's instability or an. attempt to stay off the grid, it. convinces Martinez that Crystal is. dealing with someone who either doesn't. want to be found or someone who's. planning something far worse. With all. of this in mind, Martinez wraps the.

interview with Crystal and begins the. digital side of the investigation. He. sends warrants to service providers. requesting phone records, email logs, and account information to track down. the stalker. Unfortunately for Martinez, these companies will make a mistake that. will soon prove deadly. While waiting. for the digital evidence to come back, Martinez decides to follow up on. something else. The garage break-in. Daniel reported back in September when a. stranger supposedly stole their spare. house key. He brings Daniel in for a.

formal interview, wanting to know. whether he's noticed anyone following. him. But instead of clarifying things, Martinez is about to learn something far. more unsettling about the Krug. household. But before we get to that, 2025 is almost over and we're falling. into the same trap again, waiting for. January 1st to start something new or. learn a new skill. But here's the truth. You don't need a new year to make a new. start. Let me tell you about the 2-day. live AI mastermind training by Outskill. happening [music] this Saturday and. Sunday, 10:00 a.m. to 7:00 p.m. EST on.

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something troubling about the couple's. marriage. >> And I guess at what point did she tell. you that he reconted her this last time? >> Uh, it was either. November 1st or November second. It was. it was after she had gotten uh a picture. of me at work that she brought me up to.

speed on. >> that. Gotcha. Okay. And the first. contact that he initially made with her. was back on October 2nd, I guess. Why. that month gap, do you think before she. told you? I'm sure she has mentioned to. you that. um she and I are going through a rough. patch kind of on the rocks. Uh so. probably didn't seem that pressing until. until I was. >> sure and she didn't mention that to me.

that you guys were having a rough time. currently. Are you guys in the process. of separating, getting divorced or. working through things? >> Should be determined. My my brother. Matthew is a cop. Uh so I have a uh. retractable ASP uh steel baton. >> Yeah. >> Uh as I said, not right now, but. otherwise it's on me all the time. I. sleep with it next to me. I've bought.

some additional security cameras for the. house. So what am I doing? I'm panicking. and I'm doing a [ __ ] job of protecting. my wife. So, I'm not I'm not doing good. >> Yeah, I can see that. So, with that. being I know that Christile, we put her. car on a lift on Tuesday afternoon um to. see if there's any sort of GPS tracking. or anything like that. >> We couldn't find anything on the car. If. Anthony is watching you guys, it's going.

to be in person from a distance or. nearby or however. Um, so. that poses an interesting issue in of. itself. >> From Daniel's reactions, it's clear the. stalking is taking a toll on him, too. His wife is terrified, his family feels. haunted, and he's struggling to. understand how any of this is happening. Detective Martinez wraps up the. interview, but something Daniel said.

lingers in the back of his mind. He. revealed that he didn't know about the. stalking for almost a month. Not until. Crystal finally showed him the email. with the photo taken outside his. workplace. So, Martinez decides to look. deeper into the family dynamic. And what. he finds is concerning. He learns that. the couple have been going through a. rough patch recently. Nothing hostile or. dangerous, but they were trying to work. things out, doing what they believed was. best for their kids and holding their. family together the best they could.

with how much the stalker seems to know. about their lives. Martinez briefly. wonders if someone inside the home might. be manipulating the situation. And for a. moment, he even considers the. possibility that Daniel might be messing. with his wife as some twisted way of. trying to fix their marriage. But that. idea is quickly [music] dismissed. There. is no evidence backing any of it, and. all signs still point to Anthony. Not to. mention, Crystal herself is fully. convinced her ex is behind the stalking. campaign. Throughout November, the.

harassment continues to escalate with. more messages and threats. Crystal. continues documenting everything and. constantly monitors her cameras. By. early December, she finally receives a. message that gives her the smallest. breath of air. Hey, gorgeous. I can't. visit you anymore. No more Colorado. time. My girlfriend doesn't want us. talking without her. She says, "You'll. let the cops get me after you get rid of. him." For the first time in weeks, Crystal and her family feel a brief. sense of relief. [music] It sounds like.

Anthony is backing off, maybe even. leaving the state. But in reality, this. is just the stalker's final move to make. them drop their guard before he strikes. The day starts like every other day. Daniel leaves for work while Crystal. heads out to drop the kids off at. school. During those minutes, someone. approaches the front door, tapes over. the Ring doorbell camera, and slips. inside the house. Minutes later, Crystal.

drives back home, pulls into the garage, and steps out of the car. She has no. idea. Someone is waiting for her inside, and the moment she closes the car door, he attacks. The stalker strikes Crystal in the head, stabs her, and leaves her bleeding on. the floor. After months of plotting, this is the moment he'd been waiting. for. Later that morning, Daniel tries. calling [music] Crystal from his office, but she doesn't answer or respond to. texts.

Hours pass and there's still no sign of. her. So, Daniel finally decides to call. police. >> Dispatch meeting. >> Uh, hi there. Uh, my name is Dan Krug. I. don't think this is an emergency, but. this feels really weird. Okay. >> Uh my wife isn't responding uh to text. messages or phone calls. >> Okay. >> We've had threats against us. We have. both been targeted uh by a stalker. >> Uh [music] threats have been made. against my life. Okay.

>> Uh and and threatening to like kidnap. her, which is why I'm. >> Yeah. >> nervous that she's not answering me. Within minutes of Daniel's call, an. officer is dispatched to the Krug. residence to check on Crystal. At the. same time, Daniel also calls Crystal's. mother, asking her to go check on her. daughter, sending her straight into the. worst moment of her life. While she. makes her way there, the officer reaches. the house first.

>> Hello. >> Oh, I was just on their neighbor and. they called, "Can you go see if she'll. answer the. >> Oh, yeah. He sent us as well. So. >> just next door. >> Yeah. >> Okay. >> All right. Well, you got this. >> All righty, man. Appreciate it.

The house looks quiet and the officer. doesn't notice anything wrong from the. outside. But before he clears the call. and drives off, something nags at him. So, he brings his patrol car a little. closer to check the garage where he's. about to uncover a tragic, horrifying. sight.

As the officer leans in for a closer. look, he spots a body lying on the. floor, motionless with [music] blood. smeared across the wall. 151 send medical and 110. I need a 4.

cent. I got a female down in the garage. >> Roomfield police. Romefield police. >> Oh [ __ ]. [sighs]. Holy [ __ ]. The officer steps into the garage to. find Crystal with what looks like a. severe head injury. So, he immediately. begins performing CPR, working on her.

for several moments with no success. before opening the garage door to give. medics access. But instead of. paramedics, someone else soon arrives. >> Garage is open now. >> Hello. Hello, ma'am. >> I need you to stay out, please.

Tragically, as the garage door is lifted. to get [music] medics in, Crystal's. mother catches a brief glimpse inside, just long enough to see an officer. performing [music] CPR on her daughter. Before she can process what she's. seeing, another officer quickly arrives. to shield her from this nightmare. >> Pam, I need you to come over here for a.

minute, okay? So, we can work. I. understand. I need you to come on over. here. Okay. >> She's okay. >> I know. I know. Do me a favor. Go and. sit inside so we can work on her. Okay. So, we can try to get her to help. Okay. What's your name? >> Linda. >> Linda. Okay. My name's Officer Zamora. Okay. I'll come out here. I'll give you. some news as soon as I can. Please. >> I I have no idea just yet, but I know. that they're working on her. The officer. in there has been working CPR on her, and I think she's doing okay. Okay. >> He did. He's the [music] one that called. us and let us know. Okay. Do go ahead.

Take a seat for a minute. I'll be right. back here. Okay. I need to dag out, man. She's got a head wound. I don't know if. it's from falling [music] or something. else, but probably falling, but I don't. know, man. It's a good one. >> Said there was a stalker threatening to. kidnap [music] her, so. I don't know. >> Oh, she's not. >> No, she's unresponsive. >> Decent head where we have more room.

While medics continue working on Crystal. inside the garage, an officer stands. outside reassuring a distressed woman. who's just arrived. Unaware that this is. Crystal's mother, she's shaken and. terrified by the horrors she witnessed. inside the garage. Linda would later. learn that none of this was random, and. finding her daughter like this was. always [music] part of a twisted plan. Back inside the garage, medics keep. working, still trying to revive Crystal, not yet aware of the fatal wound hidden.

beneath her clothing. >> Guys, you see anything other than a a. fall type of wound? >> Look at this [ __ ] What's that? Gas on. the chest. >> Oh [ __ ]. >> Oh [ __ ] Yeah, that's a stab. >> Damn it. [sighs]. >> Yeah, get it. Did you have you help? >> Her dispatch could tell us the husband. called in to check on her.

>> I don't know right now, but dispatch. should have it. >> So, we have a visible stab wound, you. guessed. Yes. >> Right above her right above her heart. >> Okay. Then let's [ __ ]. >> We are ali. >> Gerine, are you good with this or are. you. >> How recent is this drama? This is. >> husband said he couldn't reach her for. transport. >> We don't know if it's within 10 minutes, man. >> Okay. Yeah. >> Husband has not been able to reach her. by any means for a few hours.

>> For a few hours. Yeah. >> Stab in the chest. Let Henry know that. >> Medics work for only a few minutes. before realizing there's nothing more. they can do. Beside Crystal's body. tucked inside her purse, the officer. notices a handgun she never even had. time to reach for. With the immediate. area secure, officers spread out. throughout the house, searching every. room for the attacker, but no one is. inside. [music] And as officers step. outside the home, they start noticing. small details that don't line up with an.

impulsive crime. >> Yeah, I don't know the backstory. Husband said there was a. >> a dude who's been stalking her and. threatened to kidnap her. >> and Martinez was involved and Martinez. just said, "Hey, this is your big old. >> I don't know, dude. I don't know the. history on that part. >> Martinez does though and he said he's. coming in. So other than that, we're. just kind of securing the scene and. waiting for detectives, you know. >> See what they need. Um. >> I kicked that. Yeah, that's interesting.

>> That is very interesting. Almost like. dude might have stuck around from this. way. And. >> I wonder if maybe the door was unlocked. That's how he got in. >> Camera located on the back. Yeah. You. know what, dude? >> Deadbolted when. >> You know what? I don't know. I kicked it. and it went pretty easy. So, I'm going. to say no deadbolt. >> It wasn't deadbolted. It was just handle. was locked. >> I saw her came around and booted it. >> Officers quickly confirmed the door was. unlocked and a strip of blue tape had.

been placed over the Ring doorbell. camera. Whoever did this clearly planned. it and came prepared. As police continue. searching the scene, more family members. begin arriving one by one. Each of them. unknowingly walking into the worst. moment of their lives while officers. prepare to deliver the news no family. ever wants to hear. >> They revive her. >> I don't know anything just yet, ma'am. I. don't know anything just yet. Are you. >> so. family friend?

>> Family friend. >> Family friend from the blue house. >> Can we ask her to come knock on the. door? >> Okay. Is her husband almost here? Is he gone? Is she gone? >> We want to give you guys all the. information all together, okay? We don't. want to have to repeat the information. over and over for you guys to continue. anything. So, >> he said he was on. [laughter]. >> So, what did we do to her? >> They won't say they won't say.

figure it out. Oh my gosh. Who's in charge of the doctor? We can. know what happened. >> Absolutely. And as soon as someone frees. up who can tell you, I'll send him your. way. Okay. >> Our son's on his way. >> Is this Is this your daughter, sir? Or. your daughter-in-law? >> Those my daughter? >> This your daughter? And so her brother. is on his way. >> Yeah.

With Crystal's father and brother now at. the scene, the weight of what's happened. settles over the family, and it grows. heavier by the minute. The only person. missing is Crystal's husband, Daniel. The man who feared he wouldn't be able. to protect her for weeks. Now he's on. his way to find out those fears have. come true. As they wait for him, detectives arrive at the scene and begin.

coordinating their next steps to hunt. down whoever did this. Little do they. know, the killer they're looking for is. still in the area, much closer than they. think. >> So, I pulled my car around to the garage. just to see if her car was in the. garage, and I immediately saw her at the. base of the stairs, a blood smear on the. wall, and I came around and booted the. front door. It turns out it wasn't. locked. There's also a piece of masking. tape over the ring cabin. Almost like. somebody approached from the side and.

taped it. >> and then maybe she opened the door for. somebody. >> First thing I noticed was an obvious. head wound. They noticed after tearing. the shirt and everything off. She got a. good stab wound right [music]. right there. So. that's what we got. Husband should be. here any minute. >> Okay. So I need another detective up. here to start working with uh canvasing. I need you to stay here and Martinez is. coming here. So, he'll be good. >> with that. I want you and Martinez to.

work on this. I'm going to give. >> Well, we got to be careful of We have to. be careful. >> We don't know. Anybody that's here is still, [music]. >> so we need to be sure that we stay. focused on that. >> Yep. As investigators discuss plans to. interview Crystal's family and her. husband Daniel, he arrives on scene, cutting the conversation short. And. right away, he makes it clear to. everyone that he's nothing more than a. devastated victim overwhelmed by what's.

happened to his wife. >> Okay, I need you to stay back, sir. >> My house. >> I understand. I need you to stay back. here. Family's over here. Family's over. here. Oh woman,

please. I know there's a lot of. questions right now. Fortunately, we. don't have a lot of answers for you, but [clears throat] I know what you want. to do right now. together.

>> Or could you have someone leave me over. there? >> At this time, officers have no reason to. suspect Daniel of anything. So they. treat him with care as he goes through. this traumatic moment. But beneath that. devastation lies a cold, heartless man. because Daniel knows exactly [music]. what happened inside that garage. And. Daniel is the killer himself. Every tear and shaking breath is part of.

his act. One he will continue selling to. police and Crystal's family standing. just a few feet away. Oh my god. I didn't protect her. >> I was the person. >> Let them know about They're never going. to talk to her. They're not going to say. nobody says anything. We're just going. to tell her.

we are going to tell her. >> We don't tell this is this is a family. matter. We're just going to figure out a. reunification. careful. So, make sure that she's. >> As this tragedy unfolds, Crystal's. mother embraces Daniel, trying to. comfort him, having no idea the man. she's holding is the one who murdered. her daughter. Unfortunately for. officers, the hardest part of the job. still isn't over. As the family.

grieavves [music] outside the home, a. detective is sent to the school to pick. up Crystal's children, who still have no. idea what happened to their mother. When. the detective finds Crystal's eldest. daughter, she's already shaken. She's. been watching the live camera feed on. her phone and saw enough to know. something terrible happened. But what. she tells the detective next is what. truly alarms her. Her mother's stalker. has been hinting at something far darker. recently, and he might have deadly plans. for the rest of the family.

>> My phone notified me on my house cameras. [music] going off. There was police at. my house and an ambulance and there was. there was a stretcher. I couldn't bring. myself to see who was on the stretcher. So, I called I called my mom and dad. My. dad picks up and he's he's crying. >> They're they're probably about 7 minutes. away. Okay. Um I'm not going to lie. Something happened. Okay. That's why we. That's why you're here. Okay. >> Do you know what's going on? >> I do, but I can't I'm not going to tell. you. Okay. Um because we're still.

actively investigating what's going on. out there. Um, so I don't want to give. you wrong information. That's the last. thing I want to do. Okay. Um, what has. been going on at home? >> Um, so this dude has been threatening my. mom. Um, stalking her, uh, taking photos. of my dad, saying that he's going to. kill him. Uh, he. >> who do we know who this person is? >> One of her ex. I don't know his name. >> Like an ex-boyfriend or.

>> Yeah. Okay. Um, and they broke up a. while ago and they ended it as friends. So, this has all come to a really big. shock to her. Um, and then so he's been. contacting her from different numbers, sending pictures of my dad saying he's. going to kill them. He hasn't mentioned. anything about me and my siblings yet, which is good. Um but he's like he. posted something to a website u trying. to recruit guys to like help him with.

whatever plan he's doing. Um and then. he's like. >> how did you guys learn about that? >> Um he's been contacting my mom through. all of this and so my mom has contacted. the police and she has like a whole. bunch of people on the case but the. thing is he's making it sound like she's. helping him. and she's not. And so. >> helping him like try to kill your dad. >> Yeah. And so like we're afraid that the. police are going to turn on us. >> Okay. >> And Okay. So she's been trying to.

protect herself. >> What Crystal's daughter reveals isn't. just alarming, it's sickening. Because. this so-called stalker isn't just. threatening the family, he's twisting. the narrative inside their home. He's. making it look like Crystal was secretly. working with him to kill Daniel, manipulating the kids into believing. their own mother is dangerous while. positioning Daniel as the helpless. target who needs protection. To the. kids, their mother starts to look.

untrustworthy. To detectives, Daniel. starts to look like a victim, and to the. stalker, everything is going exactly. according to plan. It's a disturbing, genius level of premeditation carried. out by a man willing to use anyone, even. his own children. The detective logs. this information and coordinates with. Crystal's sister-in-law, Kate, to get. the children safely out of the school. Back at the crime scene, detectives. continue their work. They canvas the.

neighborhood, speak with neighbors, and. begin collecting every CCTV clip they. can find to reconstruct the killer's. movements. By this point, there's enough. evidence tying Crystal's ex-boyfriend, Anthony, to months of harassment, allowing police to obtain a nationwide. arrest warrant for stalking. Departments. across the country are notified to be on. the lookout for him. Additionally, with. a homicide on their hands and a killer. on the loose, investigators can escalate. the case and issue exigent circumstance. warrants to service providers to finally. speed up the digital data they've been.

waiting on. If Martinez received those. files weeks earlier, things might have. been very different. In the meantime, Daniel, along with the rest of the. family, is taken to the police station. for formal interviews. At this stage, it's standard procedure, and. investigators are simply looking to. collect statements. But about 2 hours. later, when detectives finally sit down. with Daniel, his routine interview will. begin to take a very different turn. [music]. So. your.

your home security system, you access that through your personal. phone. Google Google Nest. >> It's Google Nest. Okay. >> Uh-huh. I. see. >> Okay. Um just a home. >> Home. Okay. So I have your permission to. to operate this phone and get what we. need? >> Yeah. >> Okay. Um, so how many different cameras. do you have? >> Floor. Um,

doorbell. Um, side of the house, driveway, back door. How long have you had it? A. couple years. The others. all since. September. Wait. We had a uh [snorts]. we had an intruder. I I called the. police. He came when we had a garage. intruder.

>> A month after Daniel reported the garage. intruder back in September is when the. stalking first began. And by then, the. couple had already installed multiple. cameras around the house, plus their. Ring doorbell. But even with all that. security and after police confirmed they. had no GPS trackers on their cars, the. stalker still found a way to follow. them. Sending Crystal a photo of Daniel. walking into work and texting her about. seeing her at the dentist. So, as the. detective scrolls through the. surveillance footage to understand the.

timeline, he notices something strange. that catches Daniel off guard. >> So, when do your uh cameras go off? Do. you ever have them set off? 24/7. >> Okay. >> They don't turn off. You um if you lose. internet or. or in the app, you can turn them off. And who has the ability to turn off the. cameras? Who has the ability to go in. the app and turn these off? >> Uh Christile, me, and um um um.

>> It's all right. It's all right. Tal. Oh, damn it. >> I can settings. Settings settings. Okay. >> Oh, just just just us. >> Just a guess. Okay. >> The detective's question here isn't by. chance. It's prompted by something. peculiar he noticed on the surveillance. app. All of the home's cameras shut off.

at 8:15 a.m. and they stay off until. 10:15 a.m. Only the camera pointed. outside the garage remains active during. that entire 2-hour window. This. instantly narrows the murder time frame. to those 2 hours. Just then, Martinez. finally arrives at the interview room. He's the lead detective who's been. handling Crystal's stalking case for. months. And now that case has become. something far worse. He sits down with. her devastated husband, feeling the.

weight of the loss they both couldn't. prevent. They didn't save Crystal. They. couldn't protect her. And now they're. here mourning her loss, trying to piece. together what happened. It's not your fault. stupid. It's not your fault.

>> I'm sorry I didn't answer. I actually. wasn't in today. >> Mhm. >> As Daniel breaks down, something catches. Martinez's attention. Daniel is crying, but there are no tears. The detective. finds it strange and more than a little. concerning. Wanting to probe deeper, Martinez asks for a moment alone with. Daniel to see what's really going on. beneath the surface. And the moment he. starts asking questions, things get. heated fast.

>> I know you said that you don't think. that there was somebody else. She said, >> "Okay, why do you keep asking? I'm just trying. to put everything together to kind of. get a bigger picture because you said. that she's been acting kind of weird. lately and, you know, being very. secretive and withholding of information. for you. So, I'm just trying to. understand, I guess, so we can backtrack. what she's been doing this past month.

>> Martinez's question here is telling of. what he's thinking. He's not ruling out. Daniel as a possible suspect. After all, the couple were going through a. separation period, and this is meant to. probe whether jealousy or something else. could have played a role in Crystal's. death. Sensing the tension in Daniel's. response, the detective decides not to. press any further. But as they step out. for a quick break, Daniel says something. that makes it obvious he struck a nerve. >> I've seen enough.

to the husband. I can't. After. detectives [music] collect the initial. information from Daniel, his children. finally arrive at the police department. They still don't know what happened to. their mother, only that something is. very, very wrong. Daniel is notified of. their arrival and given a choice. Should. he be the one to tell them or leave it. to officers and Crystal's family? Instead of letting someone else deliver. the news, Daniel insists on telling them.

himself. A decision that appears. compassionate on the surface, but. underneath it's a way for him to control. the narrative [music] and shape how his. children see him, even in a moment of. tragedy. Following this, investigators. sit down with Crystal's family to begin. their interviews. And this is where. things start to take a concerning turn. Up until now, the case seems. straightforward. Crystal has a stalker, her ex-boyfriend Anthony. That stalker. killed her. find Anthony and you find.

Crystal's killer. But once detectives. start speaking to Crystal's parents, brother, and sister-in-law, things. become far more complicated. And what. they learn next will force them to. reconsider everything they think they. know about Crystal, her marriage, and. even her stalker. >> So, you're stating, I guess, of their. It's the exhusband who's been kind of. >> It's not about having a husband. It's a. it's an ex-boyfriend. >> from when she was 18 years old.

>> Okay. Gotcha. Can you think of anything. I guess recent? Is he reached out to. you? Have you seen any. >> No, he's never contacted me. Told you that he had messaged her again. 2 days ago or so. Let her know that uh he was ready to. come back and. so she can go ahead and off her husband. now. make it look a little bit like she was. in this whole deal with killing her. husband, I guess. >> Kate, do you think there's anything.

doesn't feel right, doesn't seem right, something that I don't know. You just. feel like might be important to our. investigation. >> I don't know. Like I just I know that. Christ was like very concerned and. worried about this guy and I just always. felt like it was like there was. something weird about it like but I. can't put my finger on it. I just feel. like she had said that that it was like. this Anthony guy that that it seemed. very different than past behavior in.

him, like that he was never sexual in. the past and that these were like very. like hypersexual things. And so I think. even at one point she was like. questioning whether it was actually him. I don't know if you necessarily know. anything um in more about that, but they. just also just kind of meant you guys. were kind of close and just see if you. had some sort of [music] insight on that. at all. >> Insight on their marriage. >> or just was there issues going on? Were. they having problems? Was there, you. know, kind of anything? It was kind of. >> She had shared with me that they had.

separated, >> okay, >> but were still living together a year. ago. And I had asked her if she over. text if she had um that she believed. that it was Anthony, but she didn't. believe at the time that I was asking. her that it was anybody but Anthony. She. was fully convinced that it was Anthony. >> Okay. >> My mom has always been like suspicious. and I just like don't know where that. comes from. >> Okay. >> Um. >> can you elaborate on that? Like. suspicious how or.

>> my mom? >> Yeah. >> Suspicious. I don't know cuz she. like the difficulty finding Anthony like. why is it so hard to find Anthony? why. can't there you know cell phone records. or IP stuff or [music] so my mom had. that frustration and so I think her mind. starts to wander towards like conspiracy. type things right of like oh maybe it's. my husband or maybe it's Dan and and I I. don't know I don't see it there just. because I don't know Dan just seems so.

incapable of doing something like that. to me. >> why do you see that just. >> I don't know I talked to him and him and. I just hung out and tal talked for like. two hours and he was like very concerned. about [music] like getting his family. together and talking about being. vigilant but not paranoid. >> Even though Crystal's brother Lars. sounds skeptical of his mother's. suspicions, she isn't exactly wrong as. on the surface it makes no sense that. Anthony couldn't be tracked down for. months. Lars would also go on to explain.

that Crystal and Daniel saw their. marriage very differently. Crystal. wanted out, Daniel didn't. And the. family seemed to view their relationship. as dysfunctional but not violent. But. listening to these statements, one thing. becomes very clear. Every family member. felt that something about the stalker. was off. There was a shared intuition. they couldn't quite articulate. And when. detectives sit down with Crystal's. mother, she makes that suspicion very. clear. Um I know you said and I kind of.

learned on scene that um she was. married, had three children. Her life. was hell and slept months and last year. [snorts] Her husband and her were not in. good terms. He was in complete denial. She tell me how he was. Did she ever give you insight on what. kind of led her to feel like her. marriage was over or it was explosive?

But I've never seen him, you know, hurt. her. He would hurt the kids, but you know, some people think the corporal. punishment is paying the kids, but he would hurt the kids. She was. worried about that, but I don't want to. say it again. But he was in she told me he was in. denial that she told him his marriage. was over but she would stay. until. graduated. I have this I just got I.

can't shake him. >> What's that feeling telling you? >> I just I can't I can't shake this. question. Is he the one that's been. doing this with empty? Needless to say, hinting that Daniel might somehow be. involved with the stalker is an alarming. accusation, and it makes things even. more complicated for the detectives. At. this point, the family itself is split. [music] Crystal's brother, Lars, completely dismisses the idea that.

Daniel could be involved, calling it. nothing more than a conspiracy. But. others felt that there was something off. about Anthony and the entire stalking. agenda. With all statements collected, detectives wrap the family interviews. and regroup to make sense of everything. they've gathered. By combining. everything they've learned, detectives. [music]. land on a clearer picture of where the. investigation now stands. The family. interviews raised enough concern, and. there was enough tension in the marriage. that detectives decide they can't rule. out Daniel yet, and he officially.

becomes a potential suspect. But even. with Daniel now on the radar, Anthony. remains as the obvious prime suspect in. Crystal's homicide. His threats and. weeksl long stalking campaign still. place him at the center of the. investigation. With that in mind, detectives know their next move. It's. time to find Anthony. At around 3:00 p.m. that afternoon, police finally get their first real. break in months. After digging through. everything they have on Anthony Holland, investigators land on a possible address.

in Utah. Because they can't reach him. themselves, Broomfield detectives. coordinate with Utah County Sheriff's. Office, sharing his name, photo, and the. address where he's believed to be. staying. Up until now, Anthony has only. existed as a name in emails and threats. A distant figure who no one has actually. seen. So, when officers finally get a. hit on his location, it becomes the. first real chance to confront the man. they've been hunting for months. >> I'm going to ask you a couple names to. see if you recognize any names. [music].

Okay. >> Do you have you ever heard of the name. Crystal Krug? She may have been Grimsrod. when you knew her. >> Yeah. >> And do you know a Daniel Krug? >> No. >> No. How do you know Crystal? >> She was an ex-girlfriend. >> She's an ex-girlfriend. >> How long's your ex? Like how long ago? >> Um 1999. >> Oh, so like a like a long while ago. >> She's my very first girlfriend ever. >> Oh, okay. >> Um when was the last time you talked to. Crystal? Has it been a while a minute? Um, it's been Yeah.

>> Like since you moved from from Durango? >> Yeah. [clears throat]. >> Yeah. So that would have been what back. in 2014? >> Yeah. >> Have you had any contact with anybody in. that area since? Anybody? Or have they. contacted you at any time? >> No. >> I'm going to give you a phone number. >> and it's to a sergeant [music]. with the Broomsfield Police Department. >> All right. >> He would like you to reach out and talk. to him. All right. Um, they have an.

incident. I don't know the full details. of their incident out there and so I'll. let him talk to you about that aspect. Um, he had asked us to come out here to. your house uh and and talk with you. Um, they were debating on you do have an. active warrant out of uh Broomsfield. Police Department. Um, and they were. debating on if they were going to have. us arrest you or not. They are not going. to have us arrest you on it. I'm going. to advise you of the fact that you do. have a warrant out of Colorado and you. can talk to this sergeant.

about the details of it, if that makes. sense. >> As officers speak with Anthony, he. appears intoxicated and confused. After. being briefed on the situation, he gives. his timeline, insisting he never left. Utah and spent the morning with family. nowhere near Colorado. Once they collect. Anony's statement, Utah officers leave. to begin verifying every part of his. story. In the meantime, detectives back. in Colorado regroup to reassess the. investigation. With Anthony still.

denying involvement, Detective Martinez. turns back to the one angle he hasn't. fully explored yet, Crystal's husband, Daniel. Since he never ruled out. jealousy or affairs as a possible. motive, he decides to dig deeper into. Daniel's past. And that's when he. stumbles onto something interesting and. very unsettling. While searching old. reports, Martinez finds a closed but. unresolved stalking complaint from years. earlier. The victim who filed it is a. woman named Carrie. And as it turns out,

she was Daniel's exgirlfriend. The more Martinez reviews, the more. disturbing the pattern becomes. The. report claims she was stalked for weeks. by an obsessed man who impersonated. multiple people, manipulating her. through fake identities. Detectives. quickly locate Carrie and bring her in. for an interview. When they sit down. with her, they uncover a story so. disturbingly similar to Crystal's, it. opens up an entirely new theory. >> I think it was, you know, like I said, a.

couple months I broke up, I broke up. with him a couple months into my. freshman year. Um, and uh, he, you know, didn't he was pretty emotional, I would. say. um. sort of desperation would maybe be a. word I would use to describe after the. breakup of please don't do this kind of. you know crying that sort of thing um. that I can recall um and then I started. to get messages from um [clears throat].

his roommate and that person's name is. Tom um on AOL Instant Messenger um and I. know Tom is real because they were. roommates if I called him. Um Tom would. sometimes pick up the phone and they. each had a joint room and a joint phone. Tom, his role, I would say, was sort of. to gain sympathy um from me for Dan and. continue to encourage me to communicate. with Dan. There was perhaps some.

indication that he was or was because of. the breakup just really not doing well. So I this, you know, made me keep. communication up with Dan. And Tom ended. up being Dan, right? So all these people. I'm going to tell you about end up being. Dan Krug, not um Tom. Yeah. Even though. Tom is a real person. This is he was not. sending me these messages. >> Suffice it to say, what Carrie tells. detectives sounds all too familiar. Everything she describes echoes the same.

pattern detectives have been seeing with. Crystal. But the parallels don't stop. there. >> Things I remember is I we uh a group of. my friends from our dorm had met I don't. even know how um some cadets from the. Air Force Academy. >> Sure. >> And so we all went to I think we went to. a movie something super innocuous and. there was like a group of us. I must. have told Dan about that. And I think it. was 2 or 3 days later, I got a message. from someone named Nick Clark. And uh.

Nick basically said, "I'm a cadet at the. Air Force Academy. I know you went out. with these people and I want you to know. that he came back or these people came. back and said that you slept with him. So now there's this rumor going around. the whole academy that you're an easy. target kind of thing." Um and Nick I. think served the purpose of um. sabotaging anyone I was meeting um if. they were associated with the Air Force. Academy. >> Of course the person that I met and went.

to the movies with was like I want. nothing to do with you weirdo. And so shortly I I don't know a while. after that I started actually more. seriously dating uh Air Force cadet. named Mark Hansen. Then of course like. Clark made a reappearance and I was. getting pretty consistent messages from. him and so he um said you know we need. to find out who's doing this and he got. me a meeting with the office of special. investigations at the Air Force Academy. I sat with them and they kind of laid.

the emails out on the table and they. said, "We've had like a forensic. psychologist sort of professional look. at all these emails." Um, and we've it's. damn is what they said. >> Carrie would go on to explain that. despite their suspicions, there was. never enough evidence tying Daniel back. to the messages she received. Then. everything had been sent from a public. library. And because of that, her. accusations remained just that,

suspicions. But even without proof, the. similarities between the two women's. experiences are impossible to ignore. And for the first time, detectives begin. considering a fourth possibility they. never imagined. [music] What if Daniel. has been playing everyone? What if he's. been impersonating Anthony? What if he's. always been the architect behind the. entire stalking campaign? Detective Martinez receives the intel.

from Car's interview. And with that, Daniel officially becomes an equal prime. suspect alongside Anthony. At this. point, the only thing that can give them. [music] a definitive answer is the. digital evidence. So, while they wait. for that, Martinez receives something he. can work with immediately. The full set. of surveillance footage collected from. the neighborhood and Daniel's workplace. Investigators sit down and begin. reconstructing the full picture of what. happened before Crystal was killed.

Shortly before 8:00 a.m., Crystal. arrives home after dropping off the. kids. She pulls into the garage, closes. the door, and everything looks normal. Minutes later, at 8:15 a.m., the entire. security system goes offline. [music]. Every camera except the outside garage. camera is taken down for the next 2. hours. At 8:25 a.m., that lone camera records. something deeply concerning. Daniel. leaves the house to go to work later.

than he normally does, and shortly after. the time medical examiners believe. [music] Crystal was killed. From there, workplace footage shows Daniel moving. through the building around 9:00 a.m., greeting co-workers and appearing. completely normal, as if nothing had. happened at home. And when investigators. check footage from surrounding houses, they find no one approaching the. property all morning. Everything about the timeline makes.

Daniel look more suspicious by the. minute. With all these new developments, detectives bring Daniel back in for. another interview. He walks in expecting. routine procedural follow-ups, completely unaware of how much has. changed since the last time he sat in. this room. This is when Daniel's monthsl. long, carefully crafted plan begins to. crumble. This time, Detective Martinez. walks in with a completely different. energy than before. He's no longer. feeling Daniel out. He's here with one.

clear objective. Confront him with. what's been uncovered and see if his. version of events finally breaks. [snorts]. >> All right. How you feeling right now? Just kind of about everything. No, everything hurts. I don't feel anything. I I have two different voices going. through my head right now. I have uh my.

brother Matthew, again, I've mentioned. him. He's. uh the sheriff's lieutenant, and I have his voice saying uh talk to. the police. And a typical cop fashion married a. prosecutor. So I have Lynn's voice in my head going, "Get a [ __ ] lawyer. I just want this to be done. I want I.

don't want I just don't want.". Right away, Daniel doesn't open the. interview casually. He opens it with a. calculated trick. By hinting at getting. a lawyer, he's warning detectives. push. too hard and this interview is over. That's clever, but Martinez has a. counter plan. Instead of confronting. him, he'll pivot the conversation to his. relationship with Crystal, making it. feel like safer ground to get Daniel. comfortable and talking. But if Daniel. had any motive to take Crystal out of. the picture, this is where it would.

surface. Well, I'm sure especially you. guys are trying to work together to be. safe, keep your family safe, keep your. as as dysfunctional as as it is, you. still both had the common goal of. keeping keeping it safe, right? I had. her as a. partner to protect the family, but it didn't feel. like. a partner who.

valued me. >> And I and I told her at that point, I. told her I didn't want to die for. someone who didn't care about me. anymore. >> That's really hard. I. was hurting when I said that. And what I. wanted [music]. was her to say she cared about me. She didn't. Although Daniel is being. honest about what was going on in their. marriage, to detectives, moments like.

this only add to their suspicions. Resentment, rejection, a failing. marriage. These are all things that in. the wrong circumstances can turn into a. motive. And this is exactly where the. interview takes a sharp turn. What. Daniel doesn't know yet is that since. his last interview, detectives received. something they kept secret for this. exact moment. One of the tech companies. finally responded to their urgent. warrants and provided some of the.

digital data they needed. And as it. turns out, the emails the stalker had. been sending, the messages that. terrorized Crystal for weeks were coming. from somewhere much closer to home. >> One of the things that um we [music]. really started looking into today in an. effort in effort to find Anthony is um. the Gmail. So, some of that information. that we've been able to receive today is. uh a little bit concerning. I guess.

>> the Gmail account, the kickman account. that you guys initially received with. the photo of you in it. >> Uhhuh. >> And the the phone number, those. originated through their IP addresses. >> Uhhuh. >> At your office. >> Doesn't make any sense. >> Well, he took the photo of me at my office. >> Both of those accounts originated. [music]. from IP addresses that list back to your. office. There are [music].

wifi access. throughout the facility for employees. and there's public Wi-Fi access. throughout the entire facility. Right. now, we're working with the director to. get all of the IP information to see. what devices were using that [music]. specific address during that time. Cuz I. guess the biggest concern is just the. timing of everything that it just. doesn't [music] quite make sense to have. somebody create an account, take a.

photo, and then immediately send it off. and then the account is no longer being. used. None of this makes any sense. Daniel. looks thrown off, unsure where Martinez. is going with this. The emails tied to. the stalker connect back to Daniel's. workplace, a detail he clearly didn't. expect [music] detectives to know. He. seems nervous, but still cooperative. So, detectives decide it's time to push.

further because they have something else. they withheld from Daniel until now. During the investigation into Anony's. alibi, officers in Utah forwarded. something small but important. A. timestamped shopping receipt placing. Anthony in Utah that morning, miles away. from Colorado at the time Crystal was. killed. Martinez and his partner decide. it's the perfect [music] time to see how. Daniel reacts when they push him. directly and force him to confront the.

possibility that he might be the. stalker. Also, let's let's add on top of. that the fact that there's as far as we. know right now, there's no physical way. that that Kickman could have been. involved in this based on where he's at. right now. So, you know, the the mystery continues and. >> that has to. things are certainly pointing in one. direction right now. >> Well, and you've given us reason. Here's. the other thing, Daniel, is um I.

sympathize with the fact that you're an. ext you're in an extremely frustrating. situation. I know you want to be a part. of your kids' lives, but you can also. sense that's why um we're asking all. these questions. >> about infidelity and everything else. Is. there some other mystery man that we. don't know about? I. have been faithful. >> You know, Anthony has reached out to her. in the past number of times. She's open,

>> right? The last time was 2016ish. He had. asked her at one point if she wanted to. have sex. If there's any bit of question. about infidelity, whether it's with. Anthony or anybody else, we might create. an account to see if Christile's. actually interested in Anthony. So, we. ask her, push the bounds a little bit, and see if that will confirm our. suspicions of infidelity. You don't get. the response and the openness you once.

did for about 28 days from October 2nd. to October 31st. Do you amp it up a. little bit? [music] Send a photo of. yourself to her and an account you. created. >> I I I get the narrative together, but it. alleges that I would do this to my. children. >> But I think ultimately what happened. today um would bring you the closest to. your children that you probably ever. ever been in your mind.

>> I'm well I'm very close to my children. and you're afraid to lose time with him. if you get the divorce. >> Clearly, detectives managed to perfectly. articulate Daniel's reality, one he may. not have even fully admitted to [music]. himself. He is a man so terrified of. losing his children, so desperate to. stay in control of his family that he. would do anything if he felt it slipping. away, even if it meant murder. The. detective's brutal honesty leaves Daniel.

speechless. He doesn't argue or deny it. He just sits there in quiet resignation, wearing the look of someone who's. realizing everyone can see straight. through his lies. >> If you were watching these facts unfold. in front of you in a movie, what would. you say happened? >> There has to be someone else. >> that was able to turn off the cameras, that was able to use your IP address. from your work to create accounts, to. send messages and photos, to act as a a. stalking suspect. I don't know. I'm not.

the one who does this. I'm analytical at. work and I read and write fiction at. home. I don't do. I don't do crime drama. I don't know. what any of this is. >> Kickman is 6 and 1/2 hour drive and then. in fact he was contacted in his house. severely intoxicated. There's no way he could have made that. drive. all this time that we've been. looking for him as a protection order.

and you just found him today like that. >> We've been chasing the wrong dog. >> It sounds like. you're you're accused. >> We have a lot of information that points. your direction [music] and we were. hoping that you could provide. explanation other than it wasn't me. I. don't have a narrative or a story that I. can offer you because I thought we were. at the same time. >> What would you think or what would you.

say if uh we told you that other people. you talked to that are close to your. wife um expressed that she had maybe. told them that she suspected you of. having. >> She said that right [music] to my face. that she wanted to know if it was me and. I told her no. But I think there's more. to the story. Like I don't know. It just. doesn't it it it's not adding up. I' I'd. like to know what happened this this. morning. I'd like to know um [music] too. what what caused what caused you to get.

so upset to hurt your wife cuz I believe. that's what happened. >> Well, I want to know what happened to. her. >> We haven't been there to know. And. there's only one person in [music] this. room that can tell us. I think you you. got confirmation or found [music] out. that she had a boyfriend this morning or. something happened that pissed you off. and you did something that you regret. now because you can't go back. I've. answered all your questions, but I guess.

you have your theory. Please. find the right one. You're done. As calm as he's been this entire. interview, Daniel finally decides he's. had enough and drops the act. His story. has crumbled. Detectives see straight. through his lies, and he knows it. With. nothing left to cling to, Daniel quietly. asks for an attorney, and the interview. comes to an end. Even though he. continues insisting he's innocent, there's one detail Daniel admits on his.

own. One no one even knew about until. now. Crystal herself confronted him. about being the stalker. Hearing that. from Daniel's own mouth hits Martinez. hard, because to him, that sounds like. the kind of confrontation that could. have pushed everything over the edge. But without hard proof, detectives can't. yet say Daniel is truly responsible. So, with the interview over, Daniel is. processed for physical evidence and. escorted out of the police station. But.

before he leaves, he turns back and. tells detectives one final thing. You don't believe that? Fine. Just don't stop looking elsewhere. Focus. on me. Okay.

Find. find the [ __ ]. Are you married? You have kids? Divorce. right behind you. I don't care if you. capture him. I just [ __ ] pay. He took. my children's mother. for Christmas. Over the next two days, the case becomes. the department's top priority. Every.

available officer is working on it. And. this is when the investigation finally. begins to break wide open. Officers in. Utah finally finish verifying Anony's. alibi. They find surveillance footage. showing him in Utah at the time of. Crystal's murder, and there are no. travel records or license plate pings. placing him anywhere near Colorado. Then. the last of the digital evidence. arrives, and this time it's. overwhelming. The burner phones used to. send the threatening messages to Crystal.

were purchased with a Visa gift card. registered under Daniel Kug's name. And. cell tower records show those burner. phones were always in the same location. as Daniel's personal phone, meaning he. was carrying both devices at the same. time. And then comes the final blow. Detectives uncovered Daniel's Google. searches from the night before the. murder. How hard would you have to hit. someone in the head to make them. unconscious? When is a head injury a. cause for concern? Piece by piece, the.

picture comes together. There's no. Anthony. There's no mysterious stalker. It's always been just Daniel. Detectives. now understand exactly what happened. Daniel created the entire stalking. persona in a twisted attempt to regain. control of his failing marriage. And. when Crystal began to suspect the truth, Daniel killed her to cover it up. On. December 16th, an arrest warrant is. issued for Daniel Krug. Officers are. dispatched immediately, finding him on.

his way to his daughter's dance. performance. As patrol units close in, Daniel's movements strike them as. suspicious. He appears to be heading. back towards his car, and officers. believe he may be trying to get away. Get this. This is a detective unit, go. on the island. >> Just get right. >> All right, we're coming up in front. Just get up and pump back. >> [ __ ] [ __ ] Go, go, go, go, go, go, go. Just go, go, go, go, go, go, go, go, go, go. >> Show us your hands.

>> Show us your hands. >> Hands on your feet. Hands on your feet. >> Hands on your feet. >> Hands on your feet. Under. Daniel Kug is taken into custody without. incident. In the weeks that follow, police finish their work. The digital. forensic evidence, the surveillance. timeline, the phone data, all of it.

leads back to the same person. Investigators become certain that Daniel. Kug acted alone. He created a fake. stalker, framed an ex-boyfriend, [music]. manipulated his wife, his children, and. law enforcement.