The mafia has always had a hand in boxing and not just the rigging so I assume several were pretty good with their hands.Gigante and Gravano to name a few.Gravano was trained by one of the best.The story that depicts Coffey to me more than any I have read was in "Murder Machine".In it the task force either lied or were dead wrong and claimed Testa had a package of coke chasing them down and Coffey pistol whipped Testa and put his head in the toilet.To me it sounds as though Coffey just wanted to beat the shit out of him.Who knows I did enjoy his knowledge