John Morris is expected to testify Monday.
Morris was the supervisor of John Connolly, the FBI agent who was Bulger’s handler while he allegedly worked as an FBI informant. Prosecutors say Bulger provided information on the New Engalnd Mafia, rivals to his Winter Hill Gang. Bulgers’ lawyers deny that he was an informant, but say he corrupted agents with cash so they would tip him off to search warrants, wiretaps and indictments.
Morris has admitted that he accepted $7,000 in payoffs from Bulger.
The 83-year-old Bulger is charged with playing a role in 19 killings during the 1970s and `80s. He has pleaded not guilty.