“It was horrible. Worst thing I've ever seen.” The full story, tonight on an all-new 2-hour Dateline mystery at 9/8c on NBC. | Dateline NBC

She heard screaming. She didn’t realize it was coming from her… Keith Morrison has the story tonight on a classic Dateline Weekend Mystery at 9/8c. | Dateline NBC

It was a nightmare in the farmhouse… Watch tonight at 9/8c on an all-new 2-hour Dateline with Andrea Canning. | Dateline NBC

A murder. A love triangle. An elusive killer. Sounds like Friday’s all-new 2-hour Dateline mystery at 9/8c with Andrea Canning… | Dateline NBC

As the mystery of what happened deepened, there would be plenty of talk around this tiny town… Don’t miss tonight’s all-new Dateline mystery with Andrea Canning at 9/8c. | Dateline NBC