an Entity references as follows:
Charles E. Shelton (April 29, 1932 – April 29, 1965) was a United States Air Force officer who was shot down during the Vietnam War over Laos during a reconnaissance mission on April 29, 1965, his 33rd birthday. His fate is unknown and he was classified as a prisoner of war until 1994, making him the last official U.S. prisoner of war from the Vietnam War. In September 1994, the Air Force reclassified him as killed in action upon the request of his children and after a search of the area where he was captured failed to yield evidence that he might still be alive.