Whitey Bulger said he was ‘not guilty’ in jailhouse letter now up for auction

Three years before he was beaten to death in prison, notorious Boston gangster James “Whitey” Bulger insisted he was “not guilty” and complained of feeling “vulnerable” in a jailhouse letter — part of a cache of photos and writings now on the auction block. “Starting to get settled down after my stay in isolation,” Bulger…