https://screenrant.com/d-b-cooper-hbo-documentary-richard-floyd-mccoy-leaves-out/
https://archives.fbi.gov/archives/news/stories/2007/december/dbcooper_123107
https://fearoflanding.com/history/the-odd-story-of-richard-floyd-mccoy-jr/
https://www.fbi.gov/history/famous-cases/richard-floyd-mccoy-jr
https://en.wikipedia.org/wiki/Richard_McCoy_Jr.
https://www.latimes.com/archives/la-xpm-1989-06-30-mn-3121-story.html#:~:text=An%20FBI%20spokesman%20in%20Seattle,FBI%20spokesman%20John%20Eyer%20said.
https://en.wikipedia.org/wiki/John_List
https://www.mentalfloss.com/article/83735/woman-who-might-have-been-db-cooper
https://screenrant.com/mystery-d-b-cooper-hbo-documentary-l-d-cooper-leaves-out/
https://www.cbsnews.com/news/d-b-cooper-found-at-last/
https://www.thisblogrules.com/d-b-cooper-synopsis-of-a-gentleman-hijacker/
https://screenrant.com/mystery-d-b-cooper-suspects-fbi-skyjacking-every/
https://www.opb.org/article/2021/11/24/d-b-cooper-50th-anniversary/#:~:text=Investigators%20confirmed%20the%20bills%20were,money%20or%20clues%20in%20D.B.
https://www.fbi.gov/history/famous-cases/db-cooper-hijacking
https://www.rollingstone.com/culture/culture-features/db-cooper-tina-mucklow-untold-story-1111944/
https://en.wikipedia.org/wiki/D._B._Cooper