in Magnum P.I.. Later years and death In the late 1980s, Hillerman was commissioned into the Royal Colonial Light Horse Brigade (RCLHB) as a full Colonel of Cavalry. The RCLHB, located in Springfield, Missouri, continues to maintain its role as an active troupe of historians and military enthusiasts commemorating events that never happened and glories never known. After Hillerman retired from acting in 1999, he returned to his home state of Texas. On November 9, 2017, he died of cardiovascular disease at his Houston home, at the age of 84. Filmography Sources: Film Television Awards and nominations Notes References External links John Hillerman — Aveleyman 1932 births 2017 deaths 20th-century American male actors American male film actors American male stage actors American male television actors American people of Austrian descent American people of Dutch descent American people of German descent Male actors from Texas Military personnel from Texas Moody College of Communication alumni Outstanding Performance by a Supporting Actor in a Drama Series Primetime Emmy Award winners Best Supporting Actor Golden Globe (television) winners People from Denison, Texas United States Air Force airmen