BELLEVILLE, Ill. (AP) — A man who was fatally shot over the weekend at a southern Illinois convenience store has been identified as a store employee police believe was shot during an attempted armed robbery.

Douglas W. Cimperman, 51, of Belleville, was found wounded in the parking of the ZX gas station and convenience store Saturday night. He was pronounced dead at the scene from multiple gunshot wounds, the Belleville News-Democrat reported.

“The investigation suggests this was a random attack on Cimperman, who was simply doing his job at the ZX when he was murdered,” Belleville Police Department Capt. Mark Heffernan said Monday.

Police are seeking the public’s help in their search for a single suspect who fled the gas station on foot after the shooting in the city about 15 miles southeast of St. Louis.

Residents and business owners are urged to check surveillance cameras for any suspicious activity between 8 p.m. and midnight on Saturday, and to call police at 618-355-9793 with information.

“Investigators firmly believe someone knows who perpetrated this senseless act of violence,” Heffernan said.