Born to Kill?

A look at the case of the Hillside Strangler, the mysterious murderer who was actually two cousins, Kenneth Bianchi and Angelo Buono, working together.

A profile of Dennis Rader, the Bind and Torture Killer, who murdered ten people between 1974 and 1991, sending letters describing the details of the killings to police and local news outlets.

A profile of British nurse Beverley Allitt, nicknamed the Angel of Death, who killed four infants and attempted to kill another nine by lethal injection in the children's ward where she was employed.

A look at Charles Manson's serial killing cult group known as "The Family." What made the members accept their sickening missions? Did they share murderous genes, disturbed upbringings, warped minds or something else?

A profile of serial killer Colin Ireland, who claimed the lives of five men in 1993 after making a New Year's resolution to become a serial killer.

A profile of serial killer Herbert Mullin, who murdered 13 men, women and children in California in the 1970s.