Open Water

In Massachusetts, Lindsay Clancy is on trial for allegedly murdering her three children. Her family and former colleagues testify for the defense. In New York, Luigi Mangione pleads guilty to federal stalking charges in the killing of UnitedHealthcare CEO Brian Thompson, while hi ...  Show more

In a special edition of Talking Dateline, NBC News’ Ellison Barber, host of the Netflix podcast, “Allegedly,” gives Josh Mankiewicz the third degree onstage at Caesars Palace in Las Vegas, for CrimeCon 2026. Josh tells Ellison how he got his start covering true crime and what the ...  Show more

Boat shows, a missing woman, and red flags everywhere you look. Did she leave her husband and head to the Caribbean to be with another man? Or … she’s gone, and the truth is something much worse?

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Rebecca Coriam, a 24-year-old from Chester, was working on a cruise ship off the Pacific coast of Mexico when she disappeared in 2011. The story of how the police and the cruise line dealt with her disappearance shines a light on the difficulties of getting a thorough investigati ...  Show more

When a hit-and-run boating accident caused the death of a popular young man, investigators faced the the daunting task of searching for one boat among 1,200 others. They asked anyone who had seen the accident to come forward. The man who responded did much more than witness the c ...  Show more

When a hit-and-run boating accident caused the death of a popular young man, investigators faced the daunting task of searching for one boat among 1,200 others. They asked anyone who had seen the accident to come forward. The man who responded did much more than witness the crash ...  Show more