While She Was Sleeping

In Massachusetts, a jury is deliberating the fate of Lindsay Clancy, a mother who says she was suffering from postpartum psychosis when she killed her three children. After California fire captain Rebecca Marodi was stabbed to death by her wife, Yolanda, investigators uncovered Y ...  Show more

In part two of this special edition of Talking Dateline, NBC News’ Ellison Barber, host of the Netflix podcast “Allegedly," sits down with Josh Mankiewicz at Caesars Palace in Las Vegas, for CrimeCon 2026. Josh tells Ellison what it’s like interviewing families who have gone thro ...  Show more

On a winter morning in 2014, a woman walked through a massive two-story house in the beautiful ski town of Aspen, Colorado. She had come to see her friend, who’d just gotten back from a long vacation. The woman walked into the bedroom, but her friend wasn’t there. She called o ...

This classic episode of 48 Hours, which last aired on 2/1/2014, features a report on the investigation into the 2009 disappearance of Dawn Viens, and why her husband, California chef David Viens, jumped off a cliff when he became a suspect in her disappearance. 48 Hours correspon ...  Show more

It was December 26th, 1996 in Boulder Colorado. Boulder had seen a great deal of snow fall the previous week, but by the morning of the 26th, only a trace of it remained, just a small dusting that would most likely disappear as the sun rose. In an upper class Boulder neighborhood ...  Show more

It was December 26th, 1996 in Boulder Colorado. Boulder had seen a great deal of snow fall the previous week, but by the morning of the 26th, only a trace of it remained, just a small dusting that would most likely disappear as the sun rose. In an upper class Boulder neighborhood ...  Show more