The Mystery of D. B. Cooper

This is one of the most mysterious criminal cases in the world – and to this day,

no one knows where this man disappeared to. In 1971, a man who called

himself Dan Cooper boarded a plane in Portland. He was calm, polite – nothing

seemed unusual. But shortly after takeoff, he handed the flight attendant a note.

It said: "I have a bomb." He demanded 200,000 dollars and four parachutes.

The authorities fulfilled all of his demands. After the handover, the plane took off

again – and somewhere over the forests of Washington, Cooper jumped out of the open rear

staircase. Despite decades of searching, only a few bills were found by a