An argument turns violent in west Erie Saturday night. Erie police are trying to sort out the details leading up to the shooting at 17th and Walnut that happened around 10:00. A 22 year old man was shot in the left ankle, he`s undergoing treatment at Hamot Medical Center. He was standing with two other men when a number of shots were fired. Police are looking for three vehicles that sped from the scene. One of the men standing with the victim may have been in an argument with one of the suspects just before the shooting.