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

The series premiere of Unknown Serial Killers of America airs on Sunday, May 18, 2025, at 7/6c on Oxygen, following an all-new episode of Oxygen’s Snapped.

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Learn what happened in the Sarah Maguire murder case, including how Brinlee Denison and Nicholas Johnson were caught.

Find out how detectives eventually caught Vincent Johnson, who killed multiple women in Brooklyn, New York, during a months-long spree.

Find out what happened to Ayesha Turner, a 28-year-old mother of two, who was reported missing before a horrific discovery ...

Learn more about North Dakota college student Anita Knutson, 18, who was found stabbed to death in her bed in a haunting mystery.

Friends Vivian Caraballo and Joann Feliciano are found murdered within weeks of each other, but were they targeted by the same person?

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Tracy Brosnan goes to the Asbury Park, New Jersey police station to report her boyfriend, Trupal Patel, as missing.

Nick Johnson and Brinlee Denison are entwined in a love triangle with Sarah Maguire, which ultimately leads to Sarah's brutal ...