Billy Costello (born William Donald Castiglioni; April 10, 1956 – June 29, 2011) was a professional boxer in the United States. Early life Costello was born in Kingston, New York, on April 10, 1956, to a Sicilian father and a mother of Native American, Italian and African American descent, as one of nine children. Costello was active in the Boy Scouts. He played third base on the Kingston High School baseball team and had originally hoped for a career as a professional baseball player. Amateur career Billy Costello won the 1978 135 pound New York Golden Gloves Open Championship. Costello stopped Raymond Johnson of the United Block Association in the second round to win the Championship. Costello began boxing in the Police Athletic League program in Kingston, and later trained at the Castle Hill Athletic Club in the Bronx, New York. Professional career During his career, he was managed by Mike Jones, who was also famous for managing Gerry Cooney and Wilford Scypion. Costello fought a lot of his early professional bouts around the Hudson Valley-NYC area, after a successful amateur career that culminated in a Golden Gloves award. The Kew Gardens section of Queens, New York eventually became his home, at least while he was champion. But before winning a title, he put together an early undefeated streak, which included a 10-round decision over Willie Rodriguez on CBS television in November 1982. He and his management then became closely associated with the CBS network, which aired several of his fights. The one and only title he held in his career, the WBC junior welterweight title, was won by knocking out Bruce Curry in the 10th round in January 1984 in front of a pro-Curry crowd in Beaumont, Texas. He would then make three defenses of the belt, all in Kingston, and all by 12-round unanimous decision. His first foe as champion was Ronnie Shields, with whom he traded first-round knockdowns before eventually securing the points win. Next was former WBC 140-lb. champion and veteran Saoul Mamby, who replaced Leroy Haley, another former possessor of Costello's belt, on five days notice. Costello defeated ex-champion Mamby unanimous decision. His next fight was finally against Leroy Haley. The result was a unanimous win over 12 rounds for Costello. Next, a Denver, Colorado fighter named Lonnie 'Lightning' Smith defeated him, knocking down and cutting the defending champion en route to an eighth-round stoppage