A killer was on the loose… The full story tonight at 9/8c on a Dateline Weekend Mystery on NBC. | Dateline NBC

This week on a new Dateline: True Crime Weekly, we’ve got updates on the accused Gilgo Beach serial killer, the Florida grandmother accused of helping plan a murder, and a homicide investigation in the desert. Listen now: https://podcasts.apple.com/us/podcast/the-family-matriarchs-defense-a-landmark-decision/id1745566056?i=1000724861749 | Dateline NBC

Thirty-two years ago this month, a series of murders began near and along Virginia’s Colonial Parkway. When it was over, four couples were dead at the hand of what authorities believe could be a serial killer. The crimes were dubbed “The Colonial Parkway Murders.” | Dateline NBC

They were like gasoline and fire... Listen Up! Episode 2 of Dateline's Mommy Doomsday drops at 4 p.m. wherever you get your podcasts: https://link.chtbl.com/mommydoomsday_fb | Dateline NBC

We've spent months now hearing the stories, many for the first time, of the other people who died after crossing paths with Lori Vallow Daybell... We'll tell those stories tonight on an all-new Dateline at 9/8c. | Dateline NBC

It was a plot so sinister, so stunning, it took even seasoned detectives by surprise… Tonight at 9/8c on a classic Dateline Weekend Mystery on NBC. | Dateline NBC

“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