A look at the life of a Polish serial killer, nicknamed the Vampire of Krakow for his wildly varying choice of victims, from young children to the elderly.

A profile of serial killer Danny Rolling, nicknamed the Gainesville Ripper, who targeted Florida students with crimes so horrific that he inspired the movie Scream.

A profile of the serial killer Robert Lee Yates, who narrowly avoided the death penalty for killing at least 13 sex workers during a horrific reign of terror.

Robert Berdella was an American serial killer known as The Kansas City Butcher, who was responsible for drugging, raping, torturing and murdering 6 young men.

A look at the cold-hearted criminal who was convicted of murdering her daughter and attempting to kill her two other children in 1983

A look at the life - and horrifying crimes - of Ted Bundy, a notorious serial killer who murdered at least 30 young women and girls between 1974 and 1978.