Notorious serial killer Ted Bundy helped long-time girlfriend Elizabeth "Liz" Kloepfer raise her young daughter for years before his arrest.

Cleveland serial killer Anthony Sowell's younger sister faced rage and “death threats” because of his gruesome crimes. 

A serial killer, Edward Wayne Edwards, left behind a trail of death, forcing family to reckon with his gruesome crimes.

Canadian serial killer Elizabeth Wettlaufer’s murders ended after she confessed to a childhood friend.

A woman who believes her brother, Shawn Grate, belongs on death row reckons with what turned him into a serial killer.

Levi Bellfield attacked and murdered woman around the London area in the early 2000s. His ex-girlfriend was eventually able to help police capture him.

Timothy Boczkowski, a man who played the role of a loving father, had two dead wives in two states. He insisted they were accidents, but investigators soon discovered otherwise.

Stephen Griffiths, who became known as the “Crossbow Cannibal,” had an obsession with serial killers, his ex-girlfriend reveals.

Houston serial killer Anthony Shore's daughter describes the terrifying ordeals she experienced living with him.

Serial killer Anthony Shore had a long history of abusing, those closest to him revealed.