Not to throw water on the fire, but Shaffer hasn't been in the government, intelligence community, or any military fashion since 2006. All he is doing is guessing. He usually comes out with these big theories right about the time he is going to release a book.
Now, he may have sources or evidence and this may be true, but on the surface, this just seems like conjecture at best. I wouldn't take it as fact or evidence either way.