Resources
https://www.fbi.gov/history/famous-cases/db-cooper-hijacking
https://www.considerable.com/entertainment/history/who-was-db-cooper/
https://www.ranker.com/list/golden-age-of-plane-hijacking/melissa-sartore
https://www.seattlepi.com/seattlenews/article/D-B-Cooper-More-new-evidence-of-parachute-11944867.php#photo-781018
https://www.dailymail.co.uk/news/article-8589339/DB-Cooper-ransom-money-buried-Columbia-River-entered-water-months-skyjacking.html
https://themountainnewswa.net/2020/09/12/db-cooper-early-suspects-and-the-cooper-vortex/
https://www.considerable.com/entertainment/history/who-was-db-cooper/
https://screenrant.com/d-b-cooper-hbo-documentary-richard-floyd-mccoy-leaves-out/
https://en.wikipedia.org/wiki/Richard_McCoy_Jr.
https://www.crimemuseum.org/crime-library/cold-cases/d-b-cooper/