Nikolai Espolovich Dzhumagaliev (Kazakh: ??????? ??????????, Russian: ??????? ????????? ???????????; born 1952) is a Soviet serial killer, also known as Metal Fang, convicted for the killing of seven people in the Kazakh SSR (now Kazakhstan) between 1979 and 1980.
Dzhumagaliev killed and cannibalized at least nine people, targeting mainly women in the Almaty area, and is believed to have killed more until his arrest.
He was declared insane and imprisoned in a mental hospital until escaping in 1989, but was recaptured two years later, and is currently serving his sentence.