James Irwin

James Benson "Jim" Irwin (March 17, 1930 – August 8, 1991) (Col, USAF) was an American astronaut and test pilot.
He was the eighth person to walk on the Moon and the first, and youngest, of those astronauts to die.
Irwin died of a heart attack while riding his bike in Glenwood Springs, Colorado on August 8, 1991 at the age of 61.