D. B. Cooper is a media
epithet popularly used to refer to an unidentified man who
hijacked a
Boeing 727 aircraft in the airspace between
Portland, Oregon, and
Seattle,
Washington, on November 24, 1971, extorted
$200,000 in ransom , and parachuted to an uncertain fate. Despite an extensive manhunt and an ongoing
FBI investigation, the perpetrator has never been located or positively identified. The case remains the only unsolved air piracy in American aviation history.