Richard Kananen Sr. abused his wife and three children so badly that no one bothered to report him missing when he disappeared; when his wife Marilyn vanished fifteen years later, it became clear that the evil in their father had been passed down.

Paula Gutierrez fell in love as a teen with Nestor 'Chino' de Jesus; his manipulative and abusive behavior turned their romance into a nightmare that ended with Paula facing life in prison for a murder that she didn't commit.

Tyler Edmonds was just thirteen when he confessed to helping his half-sister Kristi Fulgham kill her husband, Joey; did he really commit murder, or was he just one more in a long line of men that Kristi had manipulated to do her bidding?

Investigators compared the gruesome scene of Earl and Terry Robertson's death to that of the Charles Manson murders; how the quiet and mild-mannered Meredith Moon became an accomplice to one of South Carolina's most horrific crimes.

After her husband Brent was murdered, Renée Poole's multiple affairs and secret life as a stripper make her the main suspect in his death.

Tonica Jenkins has a talent for manipulating people to get what she wanted.

Toby Lowry and his 15-year-old girlfriend Morgan Leppert murder an elderly disabled man.