2. Gary Ridgway
Gary Ridgway is renowned in the world for all the wrong reasons. The man etched his name in the history books of notorious killers by sending at least 71 women six feet under. The man targeted runaways and prostitutes and lured them in by showing them a photo of his son. After gaining their trust, he would take them to a secluded location and strangle them to death with ligatures or his bare hands. After sucking the life out of them, he would perform sexual acts with the bodies and place them in various poses for his amusement. When he was finally nabbed by the cops in 2001, it was revealed that the man had been freely performing his nefarious acts and outsmarting the cops for over a decade with an IQ of 82. The man is behind bars for life in Washington State with no possibility of parole.