Stuart Sutton paid his friend, Keitani Graham, the ultimate compliment.

"He’s the kind of guy that if you had a daughter he’d be the perfect guy to marry her," he said. "He’s humble, level-headed and gifted."

Sutton was among the many still in disbelief Friday that the Olympic wrestler and community leader from Chuuk, Micronesia, who was born and educated in Hawaii, had died at age 32.

The cause of death was still unconfirmed in Hawaii, but several people have said they were told Graham died of a heart attack.

"He never even took over-the-counter drugs, never took supplements," Sutton said. "You look at someone like that, great shape, squeaky clean, no supplements, no health problems I was aware of, and you wonder … Why?"

Graham and Sutton graduated from Punahou in 1998. Graham lived with Sutton and former USA national team wrestler Jake Clark from June 2011 to July 2012 as Graham trained for the London Olympics. Graham trained at times with MMA champion B.J. Penn, and was sometimes mistaken for him, Sutton said.

He competed in Greco-Roman wrestling, representing the Federated States of Micronesia. Graham lost in a 185-pound qualifying match to Charles Edward Betts of the United States.

After the Olympics he recounted his experiences with students at Farrington High School, which has a large number of students from Micronesia.

Graham was born in Kealakekua on the Big Island and is an alumnus of Punahou School and Holy Cross College, where he was a decathlete.

"He graduated from (Xavier High School) in Chuuk at age 15 and then came to Punahou," Sutton said. "He did 650 on the verbal SAT despite English being his second language."

After graduation from Holy Cross, he taught at Central Intermediate School on Oahu in 2003.

Graham was executive director of Ship/Hoops, a nonprofit organization in Chuuk that created educational and sports opportunities and other services for youth. Graham was also a key figure in a group building a school in Chuuk. "I think improving things at home will also help improve things (in Hawaii) for Chuukese," Graham said in a Star-Advertiser interview during the Olympics.