1. Death by Social Media

A 12-year-old girl stabbed in the name of a mythical online creature; a 24-year-old man posts his darkest fantasies before slaying three coworkers.

2. Christa Helm: a Hollywood Murder

In 1977, aspiring actress Christa Helm gets murdered in West Hollywood; she becomes known for her secret diary, detailing romantic encounters with celebrities; her death remains one of Hollywood's greatest mysteries.

3. The Last Power Play: The Killing of Gavin Smith

A Hollywood studio executive and devoted family man vanishes into thin air one night; as investigators dig into the case, they uncover dark secrets, and the details of man living a double life.

4. Serial Killers of the '80s

Richard Ramirez was a satanic killer terrorizing an entire state who sexually assaulted his victims. Aileen Wuornos, a highway hooker with a gun. Doug Clark and Carol Bundy prowled the Sunset Strip for sex and victims.

6. Young, Famous and Criminal

Fame at any age can make someone feel invincible, but young stars can lose control; Johnny Lewis ("Sons of Anarchy"), Lillo Brancato Jr. ("The Sopranos") and Ricardo Medina ("Power Rangers") are profiled.

7. Wonderland Murderland

In 1981, four people are found brutally murdered in the Hollywood Hills; the story of this horrific crime involves a prolific adult film star, a prominent LA nightclub owner, and the teenage girl caught between them.

8. The Price of Fame

When obsession meets celebrity, the results can be fatal; rising music star Christina Grimmie is gunned down by a crazed fan; singer Bjork survives a bizarre plot by a man who takes his own life.

9. The Chippendales Murder

In 1979, Steve Banerjee cofounds the Chippendales male revue; as the franchise grows into an empire that generates vast sums of revenue, Banerjee does anything to protect it, including murder.

10. Young, Famous and Criminal

Fame at any age can make someone feel invincible but what happened when young stars lose control? Johnny Lewis (Sons of Anarchy), Lilo Brancato Jr.(The Sopranos) & (Power Ranger) Ricardo Medina are profiled.

11. Who Killed Chandra Levy?

When a D.C. intern vanishes from the most powerful city in America, rumors of an affair with a married congressman spread like wildfire. A year later her body is found but 15 years on and the case remains unsolved.

12. Wonderland Murderland

In 1981, four people are found brutally murdered in the Hollywood Hills; the story of this horrific crime involves a prolific adult film star, a prominent LA nightclub owner, and the teenage girl caught between them.

13. The Price of Fame

When obsession meets celebrity, the results can be fatal; rising music star Christina Grimmie is gunned down by a crazed fan; singer Bjork survives a bizarre plot by a man who takes his own life.