BOSTON (AP) - Attorneys for reputed gangster James "Whitey" Bulger are arguing prosecutors should keep their end of an alleged deal granting him immunity from federal prosecution.
Bulger's attorneys made the argument in papers filed Monday in federal court in Boston.
The 83-year-old Bulger, who was allegedly an FBI informant, is accused of playing a role in 19 killings.
In their filing, his attorneys say Bulger's deal gave him immunity from federal prosecution, in return for cooperation with authorities. They say he fulfilled his part of the deal, and that means he can't be federally prosecuted for crimes before 1989.
Prosecutors have said Bulger's claim about an immunity deal is baseless. They have until April 8 to respond to the filing.