Gallo was reportedly made a member of the Cleveland mob in the 1960s and ascended quickly through the family's ranks after the bombing death of Irish mob boss Danny Greene, ending a bloody gang-war between rival factions which claimed the lives of many mobsters and lead to the indictments of many more. Gallo, 75, died on April 3, 2013 while serving a life sentence in a federal prison medical center in Springfield, Missouri.