So you contention is that Oswald shot Kennedy and then the evil government "pinned" the crime on him?
Worst.
Conspiracy.
Ever.
No, that’s not my contention. What I’m saying is that people can be manipulated, or panicked to do something, which may serve the purposes of a conspiracy. So the effect is to make the conspiracy seem larger than it is. Again, if Johnson thought Castro had JFK killed, he could have enacted a cover-up, to prevent a war. To some, that would seem as though the Cubans and the govt conspired to kill JFK and cover it up.
Worst.
Conspiracy.
Ever.
If you are going to frame someone, it helps if the guy is guilty.