sailshaw, keep in mind that you sound very similar to others who have a suspect in mind. one thing you all seem to agree on is the FBI not wanting to solve the case. I believe they tried, perhaps not hard enough in the last decade, but imagine all of the people similar to you telling them the same story about either the truth, or not wanting to solve the case. they probably got tired of hearing this, and have exhausted all the leads.
Robert Blevins....believes he solved the case..
Jo Weber.....believes she has solved the case.
Marla Cooper....believes she has solved the case.
diclemeg.....believes he has solved the case..
Galen Cook
Pat & Ron
Not to mention the ones we don't know about who claim they have all the answers.
I don't think we are even close enough to tell how the elements got on the tie.
This is how the FBI stands....
As far as suspects are concerned, Ayn Dietrich of the FBI in a 2011 article, notes that all suspects to date are not D. B. Cooper. "She insists all the suspects still being touted by Cooper sleuths have been ruled out
IMO, you should be careful in casting stones...