Uloma Curry-Walker wanted her husband, William Walker, dead. Learn how she had him murdered right after they married.

Ezra McCandless tried to claim she stabbed her ex-boyfriend Alex Woodworth to death in self-defense. See what police decided happened.

Find out why James Henrikson had Doug Carlile fatally shot in his Washington state home, and how Henrickson was linked to ...

A young woman seeks refuge at the home of a Wisconsin farmer, claiming she just escaped from a violent assault. When investigators arrive at the crime scene, they make a tragic discovery that will ...

After Lt. William Walker succumbs to his injuries, investigators must find out who killed him and why.

After Leon Harrison Jr. disappears, a missing persons investigation leads to disturbing clues and reveals a toxic relationship.

When a convicted felon is found to be in possession of Bill Mueller's gun, he shares a description of the people he purchased it from.

Leon Harrison Jr., a loving father, goes missing. What happened to him that ultimately revealed his untimely death?

Bill Mueller meets a single mother, Nancy, and they quickly form a seemingly perfect relationship.

Dr. Jim Sowa is killed by his patient, Joey O'Boyle, who had a history of violence and mental health struggles.

Forensic Psychologist Dr. Michelle Ward speaks on "the special kind of monster" that would kill a child.

Investigators discover Bill and Nancy Mueller's trailer and Jeep abandoned in rural Arkansas, with no sign of the family to be found.