Dateline Unforgettable Deadly Valentine investigates the murder of Denise Leuthold on February 14, 2013, in Peoria, Illinois.

After an Ohio coal miner is found fatally shot in his home, investigators dig into his personal life and uncover a secret affair that reveals a surprising suspect. Dennis Murphy reports Saturday, ...

CHARLES MITTELSTADT: Multiple secret lives, yes. ANDREA CANNING ... I did not. Watch “Dateline: The Killer Among Them” Friday at 9 p.m., on NBC4. “Dateline NBC” is the longest-running ...

Dateline Season 25 Episode 26, titled Double Lives, featured the case of Paige Birgfeld, a Colorado single mother who was secretly living a double life as an escort.

Dateline is set to air an episode on convicted South Carolina child killer Susan Smith. You can also listen to part of an interview with her ex-husband in this article.

Keith Morrison reports on the story of Sante Kimes, whose crimes earned her the nickname of “The Dragon Lady.” ...

Louis Bonheur's life took a tragic turn in June 2010 when he was named the main suspect in the murder of his partner, LaNell Barsock. Dateline: Secrets Uncovered will reveal details on the case.

Dateline Season 26 Episode 50, titled Prairie Confidential, investigated the brutal murder of Angila Wilder, a nursing student living in North Dakota.

Dateline: Unforgettable Season 5 Episode 5 titled The Bridge is all set to re-air on February 13, 2025, on Oxygen .

Dateline: Secrets Uncovered has been exploring some of the most shocking and mysterious cases in the United States, and here we're talking about a son's burning desire to kill his parents.

You can find all the details of the Carol Kennedy case in Dateline: The Mystery On Bridle Path, which is on NBC, and Peacock.