DIED: TONY CANZONERI, 51, featherweight, lightweight, junior welterweight champion; of heart attack. New York. Canzoneri learned to tight protecting his bootblack business as a young boy in New Orleans, won his first professional fight at 16, featherweight title at 19. Always a favorite with the fans for his fighting audacity, he cap-lured lightweight crown in 1930 with a first-round kayo, lost it three years later to Barney Ross, regained it in 1935 when Ross moved up to welterweight division. Canzoneri quit in 1939 when he was kayoed for first time, took to show business, played a boxer in Broadway show, They Should Have Stood in Bed, and a comic in nightclubs.