(Salem, OR) -- A man who was allegedly holding the driver of a semi at gunpoint on I-5 in South Salem on Monday was shot and killed by an Oregon State Police trooper. The trooper saw the semi parked near the Highway 22 interchange and stopped to help. He saw a man holding a gun on the semi's driver, the suspect fired and the trooper returned fire. The suspect ran into nearby brush and died. The trooper received minor injuries during the incident. The suspect is identified as 31-year-old Felipe Amezcua Manzo.