She gushed about her romance and her job. Life was good. Until… Watch tonight on a Dateline Weekend Mystery at 9/8c. | Dateline NBC

It was about 4:30 a.m. when Ted heard a noise and went to go see what was happening. And then there was a gunshot… His story tonight at 9/8c on a classic Dateline mystery. | Dateline NBC

She wasn’t answering her phone. Wasn’t responding to emails. Where was Karlyn? Her story tonight on a Dateline Weekend Mystery at 9/8c. | Dateline NBC

"If you watch Dateline, there's always an end. And that wasn't it." Watch for yourself tonight at 9/8c on a classic Dateline mystery with Josh Mankiewicz on NBC. | Dateline NBC

This was a well thought out, cold, calculated plan... Tune in Friday at 9/8c for a classic Dateline mystery with Andrea Canning. | Dateline NBC