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 ...

Police find tire tracks that do not match those on Richard Shoeck's car.

Learn more about the trial against Australian woman Erin Patterson, who is accused of fatally poisoning her in-laws and ...

When Britney Ujlaky disappears, a small Nevada town bands together to track down an unknown cowboy who’s a potential suspect. Some stories are memorable for their twists, people or locations. For Josh ...

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

Find out more about the latest developments in the case of missing mom Crystal Rogers, last seen in July 2015.

Find out what's going on with the trial for Rex Heuermann, who is accused of several of the Gilgo Beach killings on Long Island, New York.

When a world-class chef from a renowned Manhattan restaurant goes missing, an intense NYPD manhunt leads detectives into a ...

Sierra Jane Inscoe met Carson Sistrunk via Snapchat before meeting him in real-life Mississippi, where she shot him. Learn ...

Learn more about the "Hog Trailer Killer" Daniel Conahan Jr., as told in Oxygen's Unknown Serial Killers of America.