PONTOON BEACH, Ill.—A police officer was shot to death Tuesday by a man at a gas station in an Illinois suburb of St. Louis, authorities said. Pontoon Beach Officer Tyler Timmins, 36, died after being taken to a hospital, Illinois State Police Trooper Jayme Bufford said. The officer was shot at around 8 a.m. at a Speedway gas station along Route 111 and was rushed to a hospital in nearby Granite City before being transferred a St. Louis hospital that specializes in the most critical cases, the St. Louis Post-Dispatch reported. Bufford said Timmins had approached a car in the gas station’s parking lot because he suspected it had been stolen, and that a man began firing on him. The suspect was taken into custody. The vehicle that apparently sparked the officer’s interest was a stolen Toyota Tacoma pickup truck with Missouri license plates. Illinois State Police are investigating the …