Gregory Scarpa, Sr. was an enforcer for the Colombo crime family, specifically for the boss Carmine Persico. He was responsible for at least three murders in 1991. In addition to being a murderer, Scarpa was also racist. He despised African Americans. In fact, in 1986, he underwent emergency ulcer surgery at Victory Memorial Hospital in Brooklyn. He refused blood donations from the local blood bank because he feared that the blood may have been donated by African Americans.
Instead, he took blood donations from several family members and associates. One associate was mobster Paul Mele, who was a body builder and steroid user. Mele had contracted HIV from a dirty needle and ended up passing it on to Scarpa. It eventually progressed into AIDS which caused the death of the mobster. So Scarpa died from being a racist.