Learn more about Richard Ramirez and his psychological motivations that pushed him to become a notorious serial killer. He spared no one.

This is where the final puzzle pieces will fall into place regarding JJ Vallow and Tylee Ryan's murders.

In this part, you will learn the details of all of the deaths surrounding Lori Vallow.

This is a deep-dive into Lori Vallow's psychological profile. Check out how her behavior stacks up to known female psychopathology.

Are the three traits that psychiatrist John Macdonald detailed as the "indicators of future violence" accurate? Take a look at the research.

Two suspects have been identified in connection with Vanessa Guillen's disappearance. But, what happened to her the day she went missing?

Joseph James DeAngelo, accused of nearly 100 total rapes and murders as the 'Golden State Killer,' is expected to plead guilty on June 29.

While Manson's murder victims are the most known in the media, other victims of his include those in his cult, "The Family."

Michelle McNamara helped coin the name "Golden State Killer" and her profile of the suspect helped law enforcement capture Joseph DeAngelo.

The tight-knit community of Delphi Indiana has lived every day in the shadows wondering who killed Abigail "Abby" Williams, 13, and...

They are coldhearted, impulsive, aggressive, and dangerous - just like Ted Bundy was. What makes psychopaths different from you and me?

"Everything she told me was a lie, so how could I believe her when she told me she loved me?" The pink house on the end of Volunteer Way...

It wasn’t one simple thing that turned him into a Killer. He evaded police across the country for months. After a widespread manhunt in...