Learn more about serial killer Carl Watts, whose crimes are detailed in the Oxygen show Unknown Serial Killers of America.

Find out who wanted to kill Eduard Nektalov, a prominent dealer in New York City's Diamond District who was fatally shot after leaving his shop in Manhattan.

Find out who killed Tara Swilley, 26, as she lay sleeping near her husband and baby daughter while staying at her parents' home in Dalton, Georgia.

Learn more about alleged searches for serial killer Ted Bundy and pornography on accused University of Idaho killer Bryan ...

Exclusive: Forensic Psychologist Dr. Rachel Toles talks about how neglectful and abusive mothers foster an environment that ...

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After Reggie Coicou and Quincy Wytche are shockingly killed outside of a Burger King, their loved ones come together to mourn ...

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Learn more about the most wanted murderers in the U.S. ahead of the Unknown Serial Killers of America premiere.

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Learn more about the motive behind the murder of police officer Crystal Parker, 32, who was found fatally shot in her bed in ...