Charles G. Boyd

Charles Graham "Chuck" Boyd (April 15, 1938 – March 23, 2022) was a general of the United States Air Force. Boyd was a pilot who served in Vietnam and is the only Vietnam War prisoner of war (1966–1973) to reach the four-star rank (1992). 
Boyd supported former Vice President Joe Biden for president in the 2020 election, the first candidate he had publicly ever endorsed. 
Boyd died at the age of 83 on March 23, 2022 from lung cancer in Haymarket, Virginia.