1. Dennis Nilsen
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Nilsen murdered 15 young men, whose bodies he sought to preserve.
Ridgway remains one of the most prolific murderers in U.S. history, even killing prostitutes while his young son waited in the back of his car.
With dramatic reconstructions, offensive language, graphic discussions of crimes and flashing images. Turn on Parental controls
5. Gary Ridgeway - Ridgway remains one of the most prolific murderers in U.S. history, even killing prostitutes while his young son waited in the back of his car.
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