Learn more about serial killer Terry Rasmussen, whose crimes are detailed in Oxygen's Unknown Serial Killers of America.

When a man is found dead at a secluded rest stop, Ohio police suspect foul play within his family. As evidence builds, tensions rise, and reveal the work of a criminal mastermind intent on ...

Find out how investigators figured out that Stacey Schoeck conspired with two others to carry out the murder of her husband, Richard Schoeck, in Georgia.

Find out what happened to Megan Marotte, a 20-year-old Staten Island resident who went missing and was later found dead in a ...

A beloved grandmother is found dead under mysterious circumstances - could a romantic rival have been her killer?

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Learn more about Britney Ujlaky, 16, who vanished after getting a ride from her friend Bryce Dickey and was later found dead ...

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A young woman steps out of her local deli only to be never seen again. When she’s reported missing days later, detectives from Staten Island find themselves mired in a maze of suspects and tracing her ...

Find out why Muhammad Altantawi, 16, killed his mother, Nada Huranieh, and then threw her out the window of their Farmington ...

A Valentine’s Day rendezvous in an Atlanta-area park turns deadly, and investigators race to find the killer of a beloved husband and cub scout leader. When detectives reveal the mastermind behind the ...