(Mount Hood, OR) -- Authorities in Oregon say the body found on Mount Hood today is that of a missing ASU grad student. The Clackamas County Sheriffs office said searchers located a man's body in the area where David Yaghmourian disappeared while hiking on Monday. The 30-year-old from Phoenix was working as a research assistant at Arizona State. He was hiking Mt Hood with a friend when they split up Monday two miles away from a lodge. When he didn't show up, his friend went back down the trail to look for David, but he was gone.