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A decorated former U.S. Army soldier who pretended to take on a hit job for two Houston-area doctors talks about the case.
The search for a missing mother of two during Hurricane Harvey.
A personal fitness device that tracks steps, exercise and sleep becomes relevant in a murder case.
A filmmaker and a former Marine work to find a woman's killer.
New information in the case of a woman accused of killing her fiancé during a kayaking trip may prove her innocence.
The acquittal of Amanda Knox, who in 2007 was accused of murdering her roommate in Italy; video diaries from Amanda's best friend.
Officials suspect a man ran his daughter down in an Arizona parking lot in order to restore his family's honor.
The investigation of two murders leads from the Playboy mansion to Wall Street.
Authorities search for the killer of an A-list fashion writer who left her fast-track career and moved to Cape Cod, where she became the town's first murder victim in 30 years.
Robert Chambers speaks out after serving 15 years in prison for the 1986 murder of Jennifer Levin.