How It Really Happened

Escort agency owner Deborah Jean Palfrey threatened to expose client names and was later found dead. Investigators unravel the circumstances of her death.

Did Heath Ledger's immersion into his role as the Joker impact his real life? Bizarre drawings and puzzling clues found in the actor's apartment are detailed.

Ted Kaczynski's brother, the man who ultimately turned him in to authorities, takes us behind the hunt that led to the capture of the Unabomber.

The chilling account of a man who survived his encounter with the notorious serial killer who managed to evade police for years.

New details are revealed about singer Whitney Houston's last days and her tumultuous relationship with Bobby Brown.

Examine the factors that led to the crash that killed John F. Kennedy Jr., plus an interview with someone who may have been the last person to speak with him.

Examine the factors that led to the crash that killed John F. Kennedy Jr., plus an interview with someone who may have been the last person to speak with him.

Investigators review suspects and evidence in the murder of JonBenet Ramsey, including the family's maid and a man who portrayed Santa at a holiday party.

Investigators review suspects and evidence in the murder of JonBenet Ramsey, including the family's maid and a man who portrayed Santa at a holiday party.

What really happened to Michael Jackson? The musician's children and staff reveal what they witnessed leading up to his death.

What really happened to Michael Jackson? The musician's children and staff reveal what they witnessed leading up to his death.

Examine how Anna Nicole Smith's lavish lifestyle may have contributed to her mysterious death.

Uncover the struggles the music genius faced, from Prince's early life to the days leading up to his shocking death.

New theories have emerged about the O.J. Simpson case, involving a possible hit man who claimed responsibility for the murders.

New theories have emerged about the O.J. Simpson case, involving a possible hit man who claimed responsibility for the murders.

In a sensational, televised trial, Erik and Lyle Menendez were found guilty of murdering their parents. A shocking motive was behind the brothers' actions.

In a sensational, televised trial, Erik and Lyle Menendez were found guilty of murdering their parents. A shocking motive was behind the brothers' actions.