HARRISBURG, Ark.—The trial for a man accused of fatally shooting a co-worker at a Trumann plant has been delayed until December.

A Poinsett County circuit judge on Monday agreed to continue the capital murder trial for Bruce Wade Pennington.

Pennington was arrested May 12 after the early morning shooting death of Dorman Ray Cooper, a security guard at the Columbia Forest Products plant in Trumann. At a court hearing at the jail in Harrisburg, Circuit Judge David Burnett set Pennington’s trial for Dec. 15-19.

Cooper was a security guard at Columbia Forest Products and was on duty when he was killed. Authorities say the shooting—which happened at about 4:30 a.m.—was caught on surveillance videotape.

Authorities say Pennington and Cooper knew each other, and that it was a personal dispute unrelated to the plant. “The suspect was coming off Poinsett Avenue and pulled up next to the guard shack in his pickup,” Trumann Police Chief Larry Blagg said at the time. “He pulls up to the flagpole near the shack. He leaves the vehicle running, walks up and fires two shots at Cooper.”

According to police, Pennington left the scene in a black Toyota Tundra, drove to the Trumann Police Department and turned himself in.

Cooper had been shot once in the head and once in the chest at close range with a 9-mm Smith & Wesson handgun.

Police later found two spent shell casings outside the shack and one bullet in a door frame, Blagg said.