The offence on the face of it was a simple one, but the mystery surrounding its aftermath has passed into legend. On 24 November 1971, a man going by the name of D. (‘Dan’) B. Cooper hijacked a Boeing 727 on a domestic flight and demanded $200,000 from its owners, Northwest Orient. Confident they would catch the hijacker, the company agreed to pay the cash in exchange for their passengers. They were wrong and even to this day the police are searching for D.B Cooper, the only hijacker in history who got away with it.