Thomas John Nazzaro was a 17-year-old from Durham, New Hampshire, taking part in a month-long National Outdoor Leadership School wilderness course in Alaska when he disappeared on July 11, 1999. The group was camped on the Matanuska Glacier at about the 2,300-foot level when Thomas went to fetch water. He was wearing Scarpa plastic boots, Patagonia black rain pants, a middleweight polypropylene top, a red and black North Face Gore-tex fleece, and a fleece beanie.

Fellow students found a partially filled water pot near a glacial stream and a powerful stream pouring into a moulin, a vertical shaft in the ice. It is believed Thomas slipped on sloping ice and fell into that moulin. Rescue teams, including Alaska State Troopers and Air National Guard pararescuemen, lowered a rescuer about 100 feet and later a fiber-optic camera 250 feet into the shaft but found no trace of him or the bottom. After days of searching the official search was suspended and Thomas was presumed to have died; his body has never been recovered.

Does anyone who was on the course or in the area that day have details about the moulin or the search that could help clarify what happened?