Todd Skinner (1958-2006) was one of the early developers of sport climbing in the USA. He continued to establish many sport climbing routes throughout his lifetime.
Skinner sadly died while attempting to free a route on the Leaning Tower in Yosemite National Park when his belay loop failed.
Skinner was notable for pushing redpoint tactics in sport climbing, at a time when many of the big name climbers (particularly John Bachar and many of the Yosemite locals) were advocating a ground-up style.
Because of Skinner's ability and his willingness to accept redpoint tactics Skinner's routes were near the cutting edge of what was being done in the United States at the time.
 Hangdog Days, by Jeff Smoot https://www.amazon.co.uk/Hangdog-Days-Conflict-Change-Race/dp/1680512323/
1 recorded ascents.