Dateline Episode Trailer: Heartless | Dateline NBC

It was too odd. Why can't we just find. this woman? We formed this little army. We called. ourselves Telena's Army. Somebody had to know something, right? >> I saw her Facebook post saying that she. was going to the woods to contact me. >> Somebody who had just lost their spouse. She was very grief-stricken. >> We got to find her. >> She was your best friend. >> The closest person to me. >> Telena left a lot of her stuff behind. Car, purse, wallet.

>> People were suspicious right off the. bat. >> Telena had this secret life that you. never knew about. >> No, I don't think any of us really did. >> You see some of this stuff that they're. into. It's 50 Shades of Grey. >> It's about dominance, about control. >> Control, yeah. This is crazy. These. people know something. >> I said to look for poisoning. >> We have evidence that somebody's making. ricin. >> And it's an incredibly powerful poison. >> They wanted her to be okay. I really, really wanted her to be okay.

>> A widow vanishes in a web of secrets. What had happened to Telena? >> It's horrific. Who would do something. like that? >> Friday on Dateline. >> 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.