At approximately 12:00 p.m. Sunday, July 31, 2011, Yosemite National Park’s Emergency Communication Center received a 911 phone call reporting a fall of a hiker on the Half Dome cables. Hayley LaFlamme, a 26 year old female from San Ramon, California, had gone to the top of Half Dome and was descending when she fell 600 feet off the cables. National Park Rangers pronounced her deceased upon arrival on scene. https://www.nps.gov/yose/learn/news/laflammesar.htm