( CNN ) -- NEW : Bulger 's attorneys say the federal government is covering up its actions . US : The Justice Department declines to comment . Former mob ##ster Whitey Bulger faces 19 murder charges . A judge rules against enforcement of his immunity clause .
NEW : Bulger 's attorneys say the federal government is covering up its actions . US : The Justice Department declines to comment . Former mob ##ster Whitey Bulger faces 19 murder charges . A judge rules against enforcement of his immunity clause .