publication date: Monday, March 26, 2007 (part of Round XXIX)
clue: If this notorious (and anonymous) hijacker was ever arrested, he'd definitely be considered a flight risk.
explanation: Cooper was an unknown hijacker (he used a false identity) who jumped out of an airplane with his ransom and was never seen again. more…
solved by: Russ Wilhelm, Steve West, Justin Woods, Denise Sawicki, Mike Rothstein, Amy Austin, Mike Eberhart, Elliot Farney, Jerry Mathis, Tony Peters, Chris McKinnon, Mihai Rusu, Kerry Odell, Josh Paddison, and Joy Dunn