Dateline Episode Trailer: Unmasking the Monster | Dateline NBC

To this day, [music] I call him the. monster because that is exactly what he. is. He took the butcher [music] knife, took. it to my throat, and he just said, "Shh.". I knew what was [music] going to happen. next. >> This is an unbelievably brutal crime. >> It's the worst I've [music] ever. investigated. He was waiting in the. shadows when she came in. >> It was just so frightening. >> There was a handwritten [music] note. It. said, "No police. I'll be back. Miss. IBM.". >> Sheer terror. He knows that I work.

[music] for IBM. I'm like, "Oh my god, do I know him?". >> Months turned into [music] years. No. arrests. >> There was no trace. >> You are the one who got this case. reopened. >> If you know my mom, it's impossible. [music] not to fight. for her. Somebody has to like light a. fire. >> There was one Hail [music] Mary that we. could try. >> Hands sweating, heart beating, it had. all come down to this. >> Did [music] you know her? You didn't see. her that day? >> It feels like you're investigating me.

>> Never, ever, [music] in a million years. would have thought it would have been. him. >> A harrowing attack, a haunting crime, and a mother and daughter bond that. solved the mystery at last. Friday on. Dateline. >> [music]. >> Thanks for watching. Remember to. subscribe to our Dateline YouTube. channel to get new videos every week and. to watch previous videos anytime you. want, 24/7, 7 days a week, as you. should.