PORTLAND —  The gun used in a fatal shooting in Parkside last year has been linked to the shooting of woman who later died from a blood clot resulting from the wound.

Darien Richardson, 25, was shot by an intruder in her Portland apartment on Jan. 8, 2010. She initially recovered but died in Miami the next month.

Deputy Attorney General William Stokes confirmed today that the gun from the killing of Serge Mulongo has been linked to Richardson’s case. He would not provide further details.

The gun’s role in the crimes emerged earlier today in discussions between the judge and attorneys involved in the murder trial of Daudoit Butsitsi, who is accused of shooting Mulongo with the semiautomatic .45-caliber pistol on Feb. 10, 2010.

Assistant Attorney General Lisa Marchese said the other crime – an unsolved homicide – had taken place the month before Mulongo’s death.

Butsitsi, 25, has refused to name a number of people he had mentioned in testimony. He had said he got the gun from a friend’s house on the day of the shooting but would not say who the friend was.

Justice Andrew Horton decided that Butsitsi must answer questions about how he acquired the gun. Horton asked Butsitsi if he would.

“No, sir,” Butsitsi said. “I don’t want to put other people’s lives in danger.”

Horton said Butsitsi will face a separate contempt proceeding after the murder trial. If he is found in contempt, Butsitsi could be imprisoned until he answers or could be subjected to punishment. In the latter case, he would have a right to a jury trial.