Even after 37 years it would seem the case of the legendary sky jacker DB Cooper will never be closed:

http://news.yahoo.com/s/ap/20080101/ap_on_re_us/looking_for_cooper

"PORTLAND, Ore. - The FBI is making a new stab at identifying mysterious skyjacker Dan Cooper, who bailed out of an airliner in 1971 and vanished, releasing new details that it hopes will jog someone's memory. The man calling himself Dan Cooper, also known as D.B. Cooper, boarded a Northwest flight in Portland for a flight to Seattle on the night of Nov, 24, 1971, and commandeered the plane, claiming he had dynamite."

The Incredible Hulk Movie Iron Man Movie Review