"He had written in blood, ‘I love you,’ on the mirror.” Tune in tonight at 10/9c for an all-new Dateline on NBC. | Dateline NBC

Erin called and texted Shannon. No answer. Not that day, or the next, or the next... Watch tonight on an all-new Dateline at 10/9c with Keith Morrison. | Dateline NBC

“It’s a nightmare. And it goes on, it doesn’t stop.” Friday on an all-new Dateline at 10/9c on NBC. | Dateline NBC

Six correspondents. One stage. And maybe Keith’s 5-layer dip? See you Sunday, September 28th in Nashville for Dateline LIVE! Oh, and details to get info/tickets ARE online HERE: DatelineNBC.com/Event | Dateline NBC