ROCKLAND (AP) – A man wanted in the fatal shooting of a Vinalhaven woman at the family business in Rockland drove himself to a police station and turned himself in four hours after the killing, authorities said Thursday. Douglas Dyer, 31, turned himself in at the Waldoboro Police Department at 4:30 p.m. in the pickup truck that was being sought by state, county and local police.

, said Stephen McCausland of the Maine Public Safety Department.

Investigators believe Dyer was responsible for the fatal shooting of Allison Small, 30, at Bunker’s, a food distribution company run by Small and her husband.

Police said they think that Dyer, who was a truck driver for Bunker’s, was having an affair with the victim. Dyer, Small and her husband, Brandon Small, had planned a meeting to discuss the matter.

Small was dropped off by her husband at Bunker’s for a meeting with Dyer, McCausland said. Her husband returned at about 12:45 p.m. to see his wife running from the building after having been shot, McCausland said.

She died from her wounds in the parking lot. Another shot was fired at Brandon Small, but he escaped injury, McCausland said.

A state police airplane was involved in the search for the pickup truck in which Dyer allegedly fled from the scene of the shooting at the business on the New County Road, near the railroad station, McCausland said.

Before Dyer turned himself in, police said he was believed armed with a hunting rifle.