Deputy Henry died of a disease contracted as the result to being exposed to burning jet fuel following a military plane crash on Santa Catalina Island. He and two other deputies were attempting to rescue the pilot. As a result of being exposed to the burning jet fuel, all three deputies developed pulmonary fibrosis which causes scar tissue to build up in the lungs.
Deputy Henry was forced to medically retire in 1984 as a result of developing the illness. He died 10 years later shortly after undergoing a lung transplant as a result of the illness.
Deputy Henry had served with the agency for 18 years. He was survived by his wife and child.