On November 24, 1971, a man calling himself Dan Cooper, a.k.a. D.B. Cooper, bought a one-way ticket on a flight bound for Seattle, Washington. While the flight was en-route, he hijacked the plane and made several demands. Later, while the plane was in the air, he jumped out of it with a parachute and the ransom money he had been given. He was never found. This release consists of FBI's investigative files from its search for "Cooper" between November 1971 and May 1992.