In July, Bulger’s lawyer argued that the ex-mobster’s case was significantly undermined when the trial judge refused to allow him to tell the jury that a now-deceased federal prosecutor granted him immunity to commit crimes in return for protecting his life from the mobsters he prosecuted.
The trial judge found that the prosecutor did not have the authority to grant such immunity. Now 86, Bulger was on the run for more then a decade after fleeing Boston in 1994 upon learning that he was about to be indicted.