On January 11, 1989, brothers James and Joseph Pratt attempted to rob a home. What followed was a shocking two-day chase.

A gruesome murder scene at the Freeman family's suburban Pennsylvania home led investigators to a dark, hate-filled subculture — and a horrifying conclusion about the parents' two eldest sons.

After Fred Matting was killed, investigators discovered his wife, Patricia, was living a double life.

When Neil and Stewart Woodman got sick of their dad and wanted to cash in their mother's life insurance policy, they hired a disgraced cop and a failed lawyer to bump them off.

Dr. Mario Gonzales was happy to hire his child's nanny's son Noel Garvan-Cerna on as a ranch hand. The decision seemingly cost him his life.

A series of armed robberies at Fort Worth restaurants and convenience stores in 1985 resulted in three deaths and had police concerned more were on the way.

Skip Brown had been trying to teach his brother's stepson a trade and a business. He ended up assassinated in his own bedroom instead.

Xiomara Engel had just wanted out of her abusive marriage and to get on with her life. Her ex-husband, William Engel, and his brother had other ideas.

Ted Kimble liked spending money he didn't have. Ronnie Kimble Jr. did whatever Ted told him. And Ted's wife, Patricia, ended up dead.

Jamie McMahan and Chris Kaufmann needed cash to fuel their meth habit — so they came up with a horrifying plan that included betraying a friend.