James 'Whitey' Bulger 'fled murder scene in Batmobile-style getaway car' He could see Mr Halloran, who was nicknamed "Balloon Head" at a bar across the road. When he left in a car Weeks radioed Mr Bulger that "the balloon is rising," the court heard. His boss, wearing the disguise, then pulled up in another car and opened fire. Weeks said: "He slid across the front seat and he yelled out, 'Brian!" and he proceeded to start shooting. There was a lot of people there, they were diving, running around, they were screaming. After Mr Halloran got out of the car "Jim Bulger just started shooting at him. Brian Halloran went down, and Jim Bulger just kept shooting. His body was bouncing on the ground," Weeks said. The driver of Halloran's car, who was not a target, was also killed. Mr Bulger then fled in a 1975 Chevrolet Malibu which had been altered to send out a smokescreen or oil slick to deter pursuers, the court heard. Weeks said he called Mr Bulger later that night. The crime boss said he was having dinner with his girlfriend, and urged him to "go get something to eat." Three years later Weeks, who was considered a surrogate son by Mr Bulger, was called to a house in South Boston where he had already taken part in two execution-style killings, he told the court. Waiting for him were Mr Bulger, Deborah Hussey and her stepfather Steven "The Rifleman" Flemmi. According to Weeks the two men feared she would testify against them. He said Mr Bulger choked her, and Flemmi then pulled out her teeth before ordered him to dig a grave in the dirt floor. Weeks said he placed her on top of an earlier victim, adding: "We were kind of running out of room down there." Mr Bulger spent 16 years on the run and was captured living with his girlfriend in Santa Monica, California, in June 2011. His story was the inspiration for Jack Nicholson's character in Martin Scorsese's Oscar-winning 2006 film The Departed. He has pleaded not guilty to all charges of ordering or committing the murders and has also denied serving as an FBI informant.