After several failed attempts to kill Greene, it became evident that Licavoli's outfit needed outside help. In 1977, Danny Greene was murdered after a scheduled visit to his dentist. After learning of the dentist appointment scheduled by Greene, Licavoli and Lonardo contracted Ray Ferritto to assassinate him. While Greene was in the dentist's office, a bomb was placed underneath a car adjacent to his. Upon return to his vehicle the bomb was exploded remotely. Greene lay under the ruins of his vehicle for at least an hour before his corpse was removed. After Greene's assassination, Ferritto heard that the Cleveland Crime Family wanted him dead and in response became an FBI informant. The information that he provided led to the arrests of many high ranking mafia members, including John Licavoli himself.