A member of West Virginia’s Air National Guard was fatally injured while responding to an arson call early Sunday morning, authorities said. The airman, who was assigned to the 167th Airlift Wing in Martinsburg, was responding to a mutual aid response call to a structure fire on Charles Town Road when he was fatally injured. Investigators believe that this fire – and another one about three miles away – were set intentionally within 20 minutes of each other.