All of Michael Gargiulo’s victims were “young, attractive, and outgoing" young women, said Los Angeles Assistant District Attorney Garret Dameron.

Ashley Ellerin was stabbed more than three dozen times, creating a crime scene that one detective will never forget.

Serial killer David Berkowitz wrote a letter to law enforcement claiming that “Father Sam” commanded him to “go out and kill.”

In 1984, Laurie Barros was abducted and strangled by serial killer Sam Little, who later confessed to murdering more than 90 women.

In the early 1980s, serial killer Sam Little was charged with murder, but he managed to evade conviction.

 “They didn’t know who the hell was doing it,” Sam Little told investigators. 

For more than 20 years, Melissa Thomas’ family fought for justice and tried to find answers in their loved one’s brutal murder.

A devout Catholic, Paul Michael Stephani confessed to three slayings and two attempted murders after he was diagnosed with terminal cancer.

From cannibal killer Jeffrey Dahmer to the mysterious crimes of Israel Keyes, these true crime shows reveal the real stories behind some of the country's most notorious serial killers.

A jury recommended serial killer Michael Gargiulo be put to death, but his defense team is seeking a new trial for the “Hollywood Ripper.”