 Complete the following phrase:  Scott Eugene Fischer December 24, 1955  May 11, 1996 was an American mountaineer and mountain guide. He was renowned for his ascents of the worlds highest mountains made without the use of supplemental oxygen. Fischer and Wally Berg were the first Americans to summit Lhotse 27,940 feet  8516 m, the worlds fourth highest peak. Fischer, Charley Mace, and Ed Viesturs summitted K2 28,251 feet 8611m without supplemental oxygen. Fischer first climbed Mount Everest 29,029 feet  8,848 m in 1994 and later died during the 