Gardner Tom Comstock, 88, of Great Falls, a veteran security policeman, 5th Ranger Battalion and Purple Heart recipient of the US Air Force, died of natural causes on Sunday, January 06, 2013, at his home.At his request, no services will be held. Schnider Funeral Home is handling arrangements.Tom is survived by his wife, Betty Comstock of Great Falls; two stepdaughters, Debra Gerhard of Pennsylvania and Vicki Dunbrasky of Great Falls; seven granddaughters and nine great-grandchildren.He was preceded in death by his first wife, Marie Comstock in 1975; son Rich Comstock in 2009, a stepdaughter, Kandi Osborn and one great granddaughter, Jennie Osborn.