American D p Cooper got $200,000 from a plane at 197 1, then jumped off the plane and disappeared without a trace. He was wearing a parachute. The plane is Boeing 727, the tail boarding ladder can be put down, and no other plane can. I never heard from him again. After that, he hijacked several times to imitate him, but he was quickly caught. As a result, the plane cannot open the rear boarding ladder during flight. 1980 found some rotten $20 bills near his landing site. It is said that he was killed in the landing, but there is no evidence so far, which makes him the only fugitive in the history of hijacking in the world. This is a legend in the United States.