Burton: Where are you calling from? Buy Cozaar Online In reputed Boston mob boss James "Whitey" Bulger's racketeering trial, a former hit man who admitted killing 20 people, including a close friend, insisted Wednesday he told authorities the truth when he implicated Bulger in 11 slayings. Earlier in the week, the ex-hit man, John Martorano, was unemotional when describing his work but said he was heartbroken when he learned Bulger had become an FBI informant. Bulger's lawyers deny he was an informant and say he didn't kill 19 people.