(Troutdale, OR) -- The Multnomah County Sheriff's Office is asking for help with a shooting investigation. On May 9th, two people were in a car near Southwest 257th Avenue and 26th Street when they got into an argument with a man walking along the road, he pulled a gun and fired several shots at the car. The victim was hit in the head at least one time and despite being critically injured was able to get to Mount Hood Medical Center with the help of his passenger. Detectives believe two other people in the area saw the shooting. They're asking anyone with information about the case to contact them.