From the October 16, 1999 Pocono record. Can't post links - found it with the google search terms Michael Corleone boxer poconos. For me, it was the 5th result on the first page. YMMV. He also has more than a few pics, including at least a couple with him wearing a title belt, on his myspace page (1corleone).
DePompe, who weighs 144 pounds, became IBA champ in April, '97 at Fernwood. Despite being so battered that he took 42 stitches after the fight, he fended off then-champ Michael Corleone for 12 rounds to claim the crown.