Thug, thief, killer, but now the man who may put key mob figures away

The Chicago Sun-Times reports:

Once, Frank Cullotta was a thug, a thief and a killer. Now, the 68-year grandfather says: "I've changed."

"I probably couldn't kill a fly now, really," the mob hit man-turned government witness said in an interview in Las Vegas.

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Frank Cullotta says he lured two of his own friends to their deaths after they ran afoul of mobster Tony "the Ant" Spilotro.

Cullotta is expected to make a rare trip home to Chicago to testify in the Operation Family Secrets trial that got under way Tuesday.

His role, he said, is to identify the top bosses of the Chicago mob. Among them: Joey "The Clown" Lombardo, who authorities say is in the Chicago Outfit's top echelon.

Chicago.