The Mystery of DB Cooper

In 1971, a man named DB Cooper hijacked a plane, demanded 200 thousand dollars

and parachutes, then jumped out mid flight and vanished completely. The FBI searched for

decades but never found him or the money. Some cash turned up by a river years later,

but Cooper himself became a ghost. To this day, he remains the only unsolved

airplane hijacking in American history. Nobody knows if he survived the jump

or where he could be.