Share Word Search What Do We Know about the Mystery of D. B. Cooper? To create your word search for "What Do We Know about the Mystery of D. B. Cooper?", first select the words you want to use. Choose up to twenty words for your game by clicking on a suggested word or enter your own by typing over an existing word. Suggestions for your word search; click to add. UNIDENTIFIED ATTENDANTS NOVEMBER PORTLAND AIRCRAFT UNSOLVED STOPPING DEMANDED RELEASED HIJACKER HIJACKED HAPPENED AIRPLANE KIRSTEN SURVIVE WEAPONS SEATTLE OREGON COOPER REFUEL JUMPED FLYING PILOTS REALLY STILL HEARD FOLEY CALL AWAY FLY How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title