Wrestler who won two Olympic medals: gold in 1972, and silver in 1976.
He wrestled in college at Iowa State University, where he won two NCAA Championships.
He has been inducted into the National Wrestling Hall of Fame.
His brother, John, also has a gold and a silver medal in wrestling at the Olympics.
He was one of six Iowa State wrestlers to compete at the 1972 Olympics, including fellow gold medalist Dan Gable.