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 ...

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

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

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

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.

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

An airport worker tells police about an encounter with a distraught woman matching Alisson Alvarez's description.

Megan Nichols, a bubbly 15-year-old girl, begins acting differently after her mother forbids her from dating her boyfriend, ...