 Pari gbolohun yii: William Irwin ti a bi ni 20 May 1968 ni Niagara Falls, Ontario, ti a npè ni Billy the Kid, jẹ ẹlẹsẹ ẹlẹsẹ ẹlẹsẹ ẹlẹ : 1991 World Amateur Boxing Championships in Sydney, Australia losing to Julien Lorcy of France, and represented Canada at the 1992 Summer Olympics in Barcelona, Spain, he was stopped in the second round of the lightweight division  60 kg by Ronald Chavez of the Philippines, and as a professional won the Canadian Professional Boxing Council CPBC lightweight title, Canada lightweight title, International Boxing Organization IBO lightweight title, World Boxing Council WBC Continental Americas lightweight title, and Commonwealth lightweight title, and was a challenger for the International Boxing Federation IBF lightweight title against Paul Spadafora, and World Boxing Association BAW World lightweight title against Juan Díaz, his professional fighting varied from, i.e. lightweight to, i.e. welterweight. 