Men serving time for the rape and murder of a young woman in Hawaii maintain their innocence.

Aileen Carol "Lee" Wuornos was an American serial killer and prostitute who murdered seven men in Florida in 1989 and 1990 by shooting them at point-blank range.

The marriage of David Davis and Shannon Mohr comes to an abrupt end when Shannon is killed in what was believed to have been a horseback-riding accident.

Several of a Colorado woman's 10 husbands die under mysterious circumstances.

Schoolteacher Pamela Smart enlists a student to kill her husband.

Murderers claim their victim was killed because he was a ruthless bully.

Two men on trial for killing an elderly man claim that he had abused his family for decades.

An examination into the recent outbursts of violence in schools with a focus on the 1998 shooting spree in Jonesboro, Ark.

After serving time for several murder attempts, a woman is free on parole.

Linda Sobek, a pretty, vivacious Los Angeles model turns up missing after a photo shoot; the police investigation leads to photographer Charles Rathbun, who, after much back-and-forth, says he killed her by accident.

A man recants his partial confession to the murder of his parents.

A deputy sheriff's dispute with a Texas woman ends in her death.

How Bugsy Siegel and others built a glittering gambling mecca from barren desert; includes an interview with former casino manager Frank Rosenthal.

The life of Teena Brandon, a drifter who lived as a man, is the basis for the movie "Boys Don't Cry."

High-profile lawyer Fred Tokars allegedly hired a gunman to murder his wife so he could collect $2 million in insurance money.

Charles Ng and Leonard Lake, responsible for a series of crimes, lived on a property where police found mutilated corpses.

The tale of Alvin Ridley who was suspected of murder after his wife, who no one knew existed for 30 years, allegedly died in her sleep.

A teacher is accused of recruiting teens to kill her husband.

After a devoted mother and her two children vanish suddenly, investigators work to expose the truth behind why they never came home.

In 1993 Colin Ferguson methodically shoots passengers aboard a Long Island Railroad commuter

In a murder case that makes headlines around the globe, a professional football player stands accused of killing his friend in cold blood.

The young British nanny cared for Matthew Eappen, who died aged eight months. The case gripped the world and she was convicted of manslaughter.

An electrician is convicted of bludgeoning an investment banker to death.

A graphic account of the crimes of serial killer Jeffrey Dahmer who became, his attorney Gerald Boyle says, "the embodiment of evil." Included: footage from Dahmer's trial; comments from experts on serial murder.

John Hinckley Jr.; Daniel Sickles kills Francis Scott Key's son; the McNaughton rule; Kimberly Martin.