Gregory Scarpa

Gregory Scarpa Sr. nicknamed The Grim Reaper and also The Mad Hatter, was an American capo and hitman for the Colombo crime family and an informant for the FBI. During the 1970s and 1980s, Scarpa was the chief enforcer and a veteran hitman for Colombo boss Carmine Persico. Scarpa committed three murders in 1991 and is suspected to have committed a minimum of 80 murders from the early 1950s to 1992. He was sentenced to life in prison in 1993 for murder, and died in prison on June 4, 1994. Scarpa is believed by the FBI to have murdered 100 to 120 people.