...tried to lower their offer by suggesting that "if the other $194,000 in bills show up, this would be worthless". IMO, D.B. Cooper died in the water that night. The other bills are long gone.

In regards to the bills that were given to the insurance company, I read somewhere that the insurance company that got the bills were taken over/sold several times. As of now the bills are missing. These may show up someday, but who knows??