Derek hersey . Jun 2, 1993 · Derek Hersey, a climber known for his ability to scale cliffs without the aid of ropes or other devices, fell to his death over the weekend while trying to ascend one of the toughest rock faces in May 31, 1993 · The "human fly" from England was one of the world's top free-solo climbers, but he fell to his death while trying to ascend Sentinel Rock in 1993. Derek Hersey (1956-1993) was a British rock climber who specialized in free soloing, and was known as "Dr. -- Friends say famed daredevil rock climber Derek Geoffrey Hersey probably slipped on some moisture and fell to his death on an ascent without ropes or other safety gear on Jun 25, 1993 · Derek Hersey, climber and climbing instructor: born Stretford, Manchester 26 October 1956; died Yosemite, California 20 May 1993. He was found dead on a ledge 850 feet above the base of the cliff after setting out to climb the 3,000-foot rock face. He was known as "Doctor Death" for his risky and impressive ascents, but died in a fall on Sentinel Rock. May 31, 1993 · YOSEMITE, Calif. May 31, 1993 · In the adrenaline-stoked realm of vertical rock climbing, Derek Geoffrey Hersey was regarded as one of the world's best, a daredevil among daredevils who did not use a rope. Death". He died in a fall while soloing the Steck-Salathé Route in Yosemite National Park. Derek Hersey (1956-1993) was a free soloist who specialized in hard routes in Eldorado Canyon and Yosemite. fbgpipxdseaaekgcdnqiyuesngaxhfmgrouywlyvmwgouvb