
An in-depth look at some of the world's most dangerous murderers.
Bobby Joe Long is on Florida's death row for abducting, sexually assaulting and murdering at least 10 women in the Tampa Bay area during an eight-month period in 1984.
Cary Stayner is a serial killer who murdered four women at Yosemite National Park and was the product of a uniquely tragic background; in 1972, Stayner's brother, Steven, was abducted by child molester Kenneth Parnell but Steven escaped.
In 2007, single mother of three Paige Birgfeld goes missing.
Experts look back on the crimes of John Cannan as he moved in and out of prison.