A 53-year-old Gwinnett County man was trying to break up a domestic dispute outside his taxi when he was shot and killed, police said Monday.

Aidarous Abdella, of Lilburn, had driven Elizabeth MeKonnen, 29, to the Tucker area to meet her boyfriend early Sunday, according to Gwinnett police. When MeKonnen got out of the taxi, she and her boyfriend, Henok Haile Basore, 34, of Norcross, began arguing.

When Basore allegedly pulled out a gun, Abdella tried to stop the fight, Cpl. Ed Ritter said.

“The victim, Mr. Abdella, attempted to intervene between the two and was subsequently shot by Mr. Basore, who fled the scene after the shooting,” Ritter said in an emailed statement.

Abdella was dead outside his taxi when emergency responders arrived to the 1300 block of Branch Drive, shortly after 6 a.m. Sunday. He had been shot in the head, police said.

Basore was located several hours later and was charged with felony murder and aggravated assault, Ritter said. Basore was transported to the Gwinnett jail, where he remained Monday afternoon without bond, booking records showed.

MeKonnen was also arrested and charged with making false statements and obstruction, Ritter said. She also remained jailed without bond.