Dr. Mark Weinberger vanished and his wife Michelle Kramer has no idea where he is. Weinberger's story is a twisted tale of greed and power that leaves Michelle in tears and an entire town in horror. He is America’s most-wanted "Runaway Doctor."

A headless torso washes ashore. A mob's daughter is executed mob-style. A millionaire's young wife vanishes. Some believe that ROBERT DURST knows exactly what happened to all three victims. He is "The Fugitive Heir."

Lisl Auman is locked in a police car when a cop is gunned down. Still, she is convicted of murder and sentenced to life in prison. When Hunter Thompson hears about the case, he and Vanity Fair contributing editor Mark Seal begin to investigate.

When political activist Madalyn Murray O’Hair mysteriously disappears, she'll touch off one of the most baffling missing persons cases in American history- a case full of strange clues, false leads, and lethal suspects.

A woman is left for dead. When the case goes cold, private investigator Ken Brennan is hired to find out exactly what happened. His investigation uncovers disturbing clues and sets off a hunt for a man who preys on women nationwide.

Christophe Rocancourt. A charming, cunning, French imposter. When he crosses paths with police investigator George Mueller, they begin a cat and mouse game that leaves officials wondering what it will take to stop the Frenchman dead in his tracks.

An all-American soldier is found bludgeoned to death. The Army calls it a fight that went too far. But investigators discover a shocking story that starts with a nightclub showgirl and ends with two men behind bars.

J. R. Robinson was a master of deceit who led a sinister secret life. He was a con man who called himself the "slave master." No one in his life had any idea just how vicious his crimes were, or how far he would go to cover them up.

When Lou Pearlman, the man behind The Backstreet Boys and NSYNC, flees the country, law enforcement officials begin an international manhunt and "Vanity Fair" special correspondent Bryan Burrough uncovers the dark secrets he’s running from.

Phil Spector, dubbed "the mad genius" of rock 'n' roll, had a penchant for guns. When police are called to his mansion, they find the body of a woman and a music legend who seems to have spiraled out of control. Who pulled the trigger? And why?

More than 500 men claim that when they attended a Florida reform school, they suffered horrifying beatings and sexual abuse. Others vow that students were killed on the campus. Now, investigators uncover a disturbing legacy and unimaginable truths.

Two men are convicted of abducting and killing 10-year-old Jeanine Nicarico, and sentenced to death. Both men maintain their innocence and a race to identify the real killer begins before an execution date is set.

Two baby girls are switched at birth and sent home to the wrong families. One mother suspects foul play, and a high stakes custody battle ensues. Barbara searches for one of the girls, now grown, whose life has taken a completely unexpected turn.

When a vivacious young escort, Shannan Gilbert, vanishes on Long Island’s south shore in 2010, her disappearance leads police to discover the bodies of ten other victims dumped by a serial killer.

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 suspects and shocking theories, as they race to capture this prolific killer before he strikes again.