D. B. Cooper and Flight 305: whodunnit

Subsequent to the publication of D. B. Cooper and Flight 305 (Schiffer Publishing, 2021), several correspondents asked whether I had a view on specific individuals proposed on internet forums as the hijacker of Flight 305.

I have to admit that I know nothing about the various persons proposed as suspects, beyond what is on the Wikipedia page for "D. B. Cooper".

For what it's worth, I quote former FBI Special Agent Larry Carr:

"... there are 1057 sub files in the DB Cooper case, each representing a subject that has been investigated. To my knowledge, not one has been linked in any direct way to the hijacking."
"Ckret" [Larry Carr], post on dropzone.com, January 6, 2008.

In order for me to write productively about any individual, I think the minimum criterion would have been that the person could reliably be located in Portland, Oregon on November 24, 1971. To the best of my knowledge, no such person has been identified in the public domain. My feeling is that on the basis of the data currently in the public domain, the hijacker cannot be identified. Only new data might enable an identification.

What would be rewarding for me as a writer would be if any law enforcement agency, or for that matter any private citizen, would visit some of the locations that I proposed, and search for evidence of the hijacker's passage.

Even better would be if the nonagenarian hijacker were to call me up and tell me that he had read D. B. Cooper and Flight 305; and what I got right and wrong.