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 ...

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 ...

Allie Tesnakis reflects on a strange encounter she had with her best friend, Megan Marotte, before Megan's disappearance and death.

Stacey Schoeck speaks to investigators, who notice a few odd things about her demeanor in the wake of her husband's death.

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

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See the trailer for Peacock's new documentary, The Gilgo Beach Killer: House of Secrets, premiering this June.

Season 3 Preview: 19-year-old Alisson Alvarez was loved by her family and friends, leaving them shocked when she disappeared.

Preview: The upcoming 3-part documentary takes viewers inside the home of accused killer Rex Heuermann and features conversations with those closest to him.

Here's everything you need to know about accused Gilgo Beach Serial Killer Rex Heuermann, his family, his alleged victims, ...