TUKWILA, Wash. (AP) — A suspect opened fire at a Washington State Patrol trooper as he tried to stop a vehicle for speeding on Interstate 405 in Tukwila. The suspects involved have not been found. WSP Trooper Rick Johnson tweeted shortly after 5 p.m. that a trooper had been shot at. The trooper was not hit. The incident happened when the trooper tried to stop a vehicle on northbound I-405. The vehicle took the SR 169 exit in Renton and was found in Kent just before 6 p.m. Sunday. There were three people in the vehicle but none have been found.