The Man Who Wasn't There

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

The murder of a young mom in her home goes cold, leaving her family wanting answers. An unexpected visitor to a local precinct decades later would open the doors needed for her family to finally learn the truth.

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A single mom looking for love vanishes without a trace. Foul play is tragically confirmed when a large pickup truck toolbox opens to her body stuffed inside. Homicide detectives investigate men she matched on dating sites, another man she met at work, and finally, a lover with a ...  Show more

After Ron DeFeo Jr. finds his parents and younger siblings dead in their Amityville, New York, home, police begin to search for the killer. Host Donnie Wahlberg and local journalist Joel Martin revisit that horrific evening in 1974, the crime scene and the investigation — all in ...  Show more

Are you the key to solving a mystery? That question is at the heart of this all-new original series from Dateline. Correspondents Josh Mankiewicz and Andrea Canning report on perplexing missing person cases brought to Dateline’s attention by our social media followers. Each episo ...  Show more