When the Wheeler murder was proposed, Martorano was hiding in Florida after being indicted in a conspiracy to fix horse races. He said he discussed the proposition with Flemmi by telephone and was told that Bulger had agreed.

Martorano said he and another gang member flew to Tulsa in May of 1981. He said they found Wheeler based on details about his appearance and golf schedule that Martorano was told came from Rico. Martorano said he put on a fake beard and a pair of sunglasses and shot Wheeler in the face after the industrialist's weekly 18 holes at toney Southern Hills Country Club.

"I saw a guy coming over the hill carrying a brief case," Martorano said. It looked like him. He was heading toward that car. So I head toward that car. He opened the door and got in. So I opened the door and shot him. Between the eyes."

To make their point, prosecutors projected a morgue photograph of the bullet hole in Wheeler's face on a screen in the courtroom.

Within a year, Martorano testified, Callahan's plan to acquire World Jai Alai and avoid arrest was falling apart.

Callahan, it turned out, had confided his plan to kill Wheeler to a drunken, disaffected Winter Hill hanger-on named Edward Brian Halloran. When Halloran was charged in Boston with an unrelated murder, he tried to trade the Wheeler conspiracy to the FBI for leniency.

Martorano said he learned about Halloran during an emergency meeting in New York with Bulger and Flemmi in the late spring or early summer of 1982.

He said Bulger told him he had gunned down Halloran in broad daylight on a busy South Boston street after learning from an FBI agent he was paying that Halloran had become an informant against the Winter Hill Gang. Martorano testified that gang members referred to the agent, John Connolly, as "Zip."

"He said that Halloran had went to the FBI and told them that I had killed Wheeler," Martorano testified. "Bulger said he learned this from his friend Zip."

The killing of Halloran, who had applied for admission to the witness protection program, had brought intense pressure on the gang in Boston, Martorano said. He said he learned from Bulger that law enforcement was about to turn its attention to Callahan and the gang doubted he would hold up.

Martorano testified that Bulger also claimed to have killed Halloran as a favor to him. Martorano said Bulger was then pressing him to kill Callahan, a close personal friend for whom he had killed Wheeler.

"He said that Zip told him that Callahan is going to get so much pressure on him that he is going to fold and we are all going to go to jail for the rest of our life," Martorano testified. "Bulger did all the talking. Stevie just listened They thought that he wouldn't hold up they wanted to take him out."

"I objected," Martorano said. "Callahan was a friend of mine. I had just killed a man for him, risked my life. I didn't want to kill Callahan. Eventually, they convinced me. It was two against one and it was three of us. And I finally agreed, 'It has got to be done. It has to be done.'"

While he was a fugitive in Florida, Martorano testified he had the use of Callahan's car and a condominium Callahan owned in Plantation. The next time Callahan flew down from Boston for a weekend, Martorano said he met him at the airport and shot him in the head.