The fighter jet, which went down around 8 p.m. Tuesday in Delta County, Michigan, was assigned to the 115th Fighter Wing at Truax Field Air National Guard Base in Madison, Wisconsin. "The cause of the crash, as well as the status of the pilot, are unknown at this time, and the incident is under investigation," the Wisconsin National Guard said in the immediate aftermath. On Thursday, the 115th Fighter Wing announced that the pilot, who was initially missing after the crash, had died. On Friday, the pilot was identified as 37-year-old Capt. Durwood "Hawk" Jones.