Who Is D.B. Cooper?
It is the only unsolved air piracy case in history. In 1971 a man hijacks a Northwest Orient Airlines flight, demanding four parachutes and $200,000. He jumps out of the plane and is never seen again.

It is the only unsolved air piracy case in history. In 1971 a man hijacks a Northwest Orient Airlines flight, demanding four parachutes and $200,000. He jumps out of the plane and is never seen again.