lbert Hamilton Fish (May 19, 1870 – January 16, 1936) was an American sado-masochistic serial killer and cannibal. He was also known as the Gray Man, the Werewolf of Wysteria and possibly the Brooklyn Vampire.

He boasted that he had "had children in every State," putting the figure at around 100, although it is not clear whether he was talking about molestation or cannibalization, less still as to whether it was true or not. He was a suspect in at least five killings in his lifetime. Fish confessed to three murders that police were able to trace to a known homicide, and confessed to stabbing at least two other people. He was put on trial for the kidnap and murder of Grace Budd, and was convicted and executed via electric chair











