On November 24, 1971, a man later known as D.B. Cooper hijacked Northwest Orient Airlines Flight 305, which was en route from Portland, Oregon, to Seattle, Washington. After revealing a bomb in his briefcase, he demanded $200,000, four parachutes, and a fuel truck waiting in Seattle. Authorities complied, allowing the passengers to disembark in exchange for the ransom. Cooper then instructed the pilots to fly towards Mexico at a low altitude with the rear staircase deployed. During the flight, he vanished into the dark forests of the Pacific Northwest, presumed to have parachuted out. Despite extensive searches and investigations, including over 1,000 suspects being considered, no definitive evidence of Cooper's fate was found. In 1980, a boy found bundles of decaying cash along the Columbia River, which matched the serial numbers of Cooper's ransom, but this did not lead to his identification. The FBI closed the case in 2016, yet the mystery surrounding D.B. Cooper continues to captivate the public imagination.