In the end, Alex and Herring, as well as Herring's sister, Marion Kinley, and her brother-in-law, John Wayne Kinley, Jr., ...

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

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

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

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

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