Aaron Emile Martin, 30, disappeared during a Mount St. Elias expedition in early April 2002. He and three companions — Reid Sanders, John Griber, and Greg Von Doersten — were dropped at Hayden Col on April 4 to attempt the 18,008-foot peak with plans to ski or snowboard down. Von Doersten developed frostbite and stayed in a snow cave at about 14,500 feet while Martin, Sanders and Griber continued.

On April 8, after reaching about 16,000 feet three days earlier, the trio attempted the summit. Griber, descending first on a snowboard, saw Martin lose his edge and slide uncontrollably down an icy 45-degree face for an estimated 4,000 feet before vanishing from view. Griber could not locate Sanders after calling for him and later carved Two Dead in the snow; he sheltered in a crevasse overnight and then descended to rejoin Von Doersten. An aerial search later spotted a body and gear roughly 3,000 feet below the peak, and both Martin and Sanders were presumed to have perished in falls.

What additional details or witnesses might help clarify the final hours on the mountain?