Plant Theory 101
To consider a plant of money at Tina Bar, it is helpful to take an alternative look at possible motivations for the skyjacking. If the hijacking was done for other reasons than making a quick $200K, then the plant theory has some wiggle room of possibility.
Consider:
1. The money could have been planted as part of some kind of ritual, if Norjak was some kind of group operation. Suppose McCoy was actually part of Norjak, but was NOT DB Cooper. What then did McCoy do? Why? Maybe McCoy, "Jake" and the other ground guys had a celebratory bonfire and weenie roast after the job and planted the money for fun?
2. Are any of the 922 confessees legit, or are all of them 100% whacko? Could a money plant be part of an MKULTRA process to condition people into believing they are DB Cooper? Could the money find/plant be part of a training mission? Is the money find/plant the Norjak equivalent of a Manchurian Candidate process?
3. Did DB Cooper bury the money because he wanted to get rid of it and didn't want to mail it back to the FBI?
4. Maybe DB Cooper lived at home with his mother and she found the cash under Sonny-Boy's bed, and momma buried it to teach DB a lesson and remove incriminating evidence from her home?
Remember, in the Cossey murder somebody mailed Coss' credit cards and DL back to the family. Wassup with dat?
Strange things happen in life and crime...
I think it's important to consider that DB Cooper may not be a guy like us, and he may not have committed the crime for the reasons we would.