26. Albert Fish
The fact that this man who will be remembered as one of the cruelest serial killers had so many nicknames, speaks a lot. He used to be known as Gray Man, Brooklyn Vampire, the Moon Maniac, and many other things described him in the best possible manner. His main target were children, and it has been reported that there were around 100 of his victims. Besides being a murderer, he was a rapist and a cannibal.
