D. B. Cooper and Flight 305: Reexamining the Hijacking and DisappearanceThe D. B. Cooper case is the only unsolved act of air piracy in US history. On November 24, 1971, a polite, nondescript, and dark complexioned man calling himself Dan Cooper hijacked Northwest Airlines Flight 305, Boeing 727, between Portland, Oregon, and Seattle, Washington. At Seattle International Airport, he demanded and received $200,000 and four parachutes, released the passengers, and ordered the crew to take him to Mexico. Somewhere along the