Former FBI agent John Connolly was convicted ... of second-degree murder for leaking information to Boston mobsters that led to the 1982 shooting death of a gambling executive who also had ties to gangsters. Prosecutors said former World Jai-Alai president John Callahan was killed after Connolly warned gangsters that Callahan might implicate them in other slayings. Boston mob kingpins James Whitey" Bulger and Stephen "The Rifleman" Flemmi were FBI informants handled by Connolly. Connolly was convicted in 2002 of racketeering because of his relationship with Bulger and Flemmi, including a 1995 tip that enabled Bulger to escape arrest and begin a life on the run that continues to this day. Bulger is one of the FBI's "Ten Most Wanted" fugitives. The story that unfolded over the past two months in a Miami courtroom spanned more than two decades of Boston's underworld, a tale that has already spawned several books and was the basis for the 2006 Martin Scorcese film "The Departed." Connolly retired from the FBI in 1990 and was later indicted on federal racketeering and other charges stemming from his long relationship with Bulger and Flemmi, who paid the agent $235,000 over the years for protection, according to trial testimony. In a case considered one of the FBI's worst failures, Connolly was convicted in 2002 and is serving a 10-year federal prison sentence in the corruption case. He was indicted in 2005 in the killing of Callahan, 45, whose body was found stuffed in the trunk of his Cadillac at Miami International Airport in August 1982.

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