Seibert died at his home in nearby Edwards age 77 on July 15, 2002, following a nine-month battle with esophageal cancer, and was buried in Vail Memorial Park.
Seibert's passing occurred at his home in Edwards, Colorado, at the age of 77, on July 15, 2002, following an intense battle with esophageal cancer. He was laid to rest in Vail Memorial Park, marking the end of a long and challenging fight.