Amarillo police investigating fatal wreck involving car and pedestrian April 23, 2014 at 1:14 PM CDT - Updated July 20 at 11:07 PM Amarillo, TX - Amarillo police are investigating a fatal wreck involving a car and a pedestrian. Just before 7:00 this morning Amarillo police report a vehicle struck a pedestrian crossing southeast 10th Avenue, downtown. The pedestrian has been identified as 66 year old Mart Self. Self died at the scene as a result of his injuries. An autopsy has been ordered.