Good point. Aside from LBJ's obvious benefit of moving up to the presidency, there were government investigations going on at the time which very well could have led to criminal charges against him, especially since his nemesis Bobby Kennedy was Attorney General. Killing JFK and moving to the White House would surely solve that problem for Johnson. And, as I said, LBJ had, in all probability, killed before.
There was one critical piece of physical evidence found by a private detective years after the assassination: a fingerprint identified as belonging to an LBJ associate in the "sniper's nest" in the Texas School Book Depository Building!
Lyndon Bird was an immoral bastard who forced a few female reporters into bed as a favor to their president. He would interview his underlings while he squatted on the WH crapper.
He was very proud, however, not of his country but of his enormous schwanschticker.
In short. He was an animal.
1. LBJ was a crook & a slimeball, capable of almost anything.
2. George Pharr did pack the ballot box #13 for LBJ in Duvall County in 1948. He voted just short of 200 names in alphabetic order from the grave yard register. It was shown to be the case later and it was not prosecuted. This put LBJ in the Senate.
3. As a young man I knew all about Landslide Lyndon. JC Davis was the Asst. Attorney General of TX (for several administrations) and he was a good friend of my grandfather. He always came to visit my grandfather when he came to see his dad. In those days TX was 100% Democrat. No GOP office holders. But those Democrats were very fiscal conservative. Much more so than current GOP officeholders. JC Davis loathed LBJ and I heard all the stories.
4. In my opinion LBJ did not kill Kennedy.
5. Cuban Mafia? Probably. With help from others, Possibly some CIA? Some were also involved in the Bay of Pigs. Which Kennedy really betrayed.
This is probably the reason so much of the JFK info has been under a 50 year seal.
Guess what 2013 turns out to be.