"An air search located the body of Ling Dao on the north side of the 14,505-foot (4,421-meter) mountain in Sequoia National Park, according to a statement from the Inyo County Sheriff's Office."

"Dao was last seen alive at the summit by other hikers June 12, who informed authorities of the location which ultimately led them to his body about 1,900 feet (579 meters) from the summit at an altitude of about 12,600 feet (3,841 meters), Kawasaki-Yee said."

linktostory

This places him in the valley between Whitney and Russell I believe. So it would seem either he slipped while trying to get a "gander" at the Mountaineering Route or was actually trying to decend the MR.