William F. Roemer Jr. (June 16, 1926 – June 14, 1996) was an FBI agent for 30 years. He is known for his battle against organized crime and being the most highly decorated agent in FBI history. After retirement he became a private attorney for businesses being muscled by the mob. He was the author of several books, including biographies on mobsters Tony "The Ant" Spilotro and Tony "Joe Batters" Accardo. Throughout his career, he encountered and dealt with Felix "Milwaukee Phil" Alderisio, Gus Alex, Jackie "The Lackey" Cerone, Sam "Mooney" Giancana, Murray "The Camel" Humphreys, "Mad" Sam DeStefano, Joseph Bonanno, and Ralph Pierce, among others. Roemer died in 1996 of lung cancer, just two days before his 70th birthday. Early life William F. Roemer Jr. was born in Indiana to William F. Roemer, a former Jesuit seminarian, and Carmel Luther Roemer. During World War II, he served as a Private (1st Class) in the U.S. Marine Corps. He attended University of Notre Dame for a legal career. While there, he became an amateur boxer, and was nicknamed "Zip" for his skills. Career highlights William F. Roemer Jr then joined the FBI in 1950 and served there for 30 years before retiring in 1980. When J. Edgar Hoover created the Bureau's Top Hoodlum Program in 1957, Roemer was personally selected for the task. The program consisted of surveillance of organized crime figures. Roemer also developed (or tried to develop, "flip") several mob informants. Richard Cain, a disgraced former cop turned mafioso, was one of those. With his efforts, he helped the Feds put away Outfit bosses like Sam "Teets" Bataglia and Felix "Milwaukee Phil" Alderisio within a year of their rise to leadership. Roemer also tried over a period of time to "flip" Outfit "hitman" Charles "Chuckie" Nicoletti, to no avail. Roemer was indirectly related to the death of William "Action" Jackson who was the victim of a grisly gangland murder after Roemer was observed trying to make Jackson an informant and the Chicago Outfit suspected him of snitching. Roemer relocated to Arizona and was assigned to Joe Bonanno, and helped the FBI convict him. Roemer mentions how he had to go through Bonanno's trash to obtain torn pieces of paper written by Bonanno outlining his daily agenda and having to wiretap the different phone booths Bonanno used to relay his messages. Retirement and later life During retirement Roemer was