When a vivacious young escort, Shannan Gilbert, vanishes on Long Island's south shore in 2010, her disappearance leads police to discover the bodies...

The discovery of four women's bodies on Gilgo Beach was just the beginning. But who is the Long Island Serial Killer? Investigators uncover multiple...

[Gone Without a Trace] In 2011, a 10-month-old baby girl goes missing from her home in Kansas City. The family fears she's been kidnapped by a...

[Murder by the Book] On June 12, 1991, outgoing Jackie Galloway is found strangled and bound with ritualistic knots. Police investigate suspects in...

[The Keddie Murders] A mother and three teens are murdered in the remote town of Keddie, California. Despite a trail of suspects and illicit...

[A Ghastly Discovery] In 2012, hikers in Los Angeles' Hollywood Hills discover the severed head of Hervey Medellin, a retired flight clerk. The cast...

[Mystery in Texas] In 1995, 16-year-old Adrianne Jones is found shot to death in Grand Prairie, Texas. A model student and athlete, there seems to...

[20-Year Murder Mystery] Six-year-old beauty queen JonBenét Ramsey is found murdered in her Boulder, Colorado home in 1996. Investigators try...

[Los Angeles Serial Killer] A lone survivor is the only witness who can help police track down a serial killer known as the Grim Sleeper, who preys...

[Murder in Alaska] In 2004, the small town of Craig, Alaska is shocked when police discover the charred body of beloved mother and wife Lauri...

An army surgeon, Jeffrey MacDonald, is the lone survivor of a brutal 1970 home invasion that claims the lives of his wife and daughters. But...