Learn more about the "Hog Trailer Killer" Daniel Conahan Jr., as told in Oxygen's Unknown Serial Killers of America.

Find out what happened to Andrea Zamperoni, head chef at a renowned Manhattan restaurant, who vanished and was later found dead in a Queens motel room.

Find out what happened to Margaret Abernathy, 66, found breathing but unresponsive in bloody pajamas in her Georgia home after her daughter called 911.

A man's bloody torso is found in the back of a truck, and a member of his family becomes the primary suspect in his murder.

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After beginning an online friendship with Carson Sistrunk, Sierra Inscoe started wanting what belonged to him.

Richard Witte is found dead in the back of his truck, but evidence shows that he was killed elsewhere before being placed there.

Learn more about the ongoing search for convicted killer Grant Hardin, five days after he escaped an Arkansas prison.

Find out who killed Reginald Coicou and Quincy Wytche, both of whom were found with gunshot wounds across the street from a ...

Andrea Zamperoni's friends and coworkers speak about his happy, upbeat personality even in high stress environments.

Find out more about the arrest that took place at Beanie Babies billionaire Ty Warner's Montecito, Calif. home.

South of Dallas in the city of Red Oak, Texas, the mother of Wade Reese made a shocking discovery at the mobile home where he ...