Our family feels very strongly about America — and he did, too. He was quite honored to be in the Air Force. — Jan Felix, brother Felix, 52, who grew up in Springville, died of apparent natural causes while deployed in Qatar, where he was responsible for helping treat U.S. service members wounded in Iraq and Afghanistan. The Air Force lieutenant colonel, a physical therapist, was assigned to 622nd Aeromedical Staging Squadron, Robins Air Force Base, Ga.