| Sergei Arsentiev |
His frozen body remains on Everest with about 150 other mountain fatalities.
He was a Russian climber, known as the Snow Leopard for his mountaineering prowess, including the climbing of the five highest peaks in the former Soviet Union. He and his wife had reached the summit without supplemental oxygen and were descending when disaster struck. A team of Uzbek climbers said later that they had seen Sergei, who had asked for oxygen and medicine, and then left them to return to his wife. He was not seen again.