Baker was not involved in the assassination.
LBJ’s problem was that he was involved in some of Baker’s criminal activities and Baker had already ratted out LBJ to get more lenient treatment—and LBJ was going to be headed straight from the Vice Presidency to prison....
If JFK lived long enough to make it happen.
"Based on Google research a few years ago, I suspect the assassination was arranged by some of LBJ’s political supporters/handlers. The reason being that it began to appear JFK would try to get out of carrying the French water on Vietnam. There was a lot of potential money for huge contracts to build military size ports, roads, etc. in Vietnm We saw such funny business during the 2003 Iraq War. Perhaps some here remember more than I do about some of those scandals." - gleeaikin
https://freerepublic.com/focus/news/4305195/posts?page=288#288
Or was Kennedy killed because of displaced Palestinians?
https://freerepublic.com/focus/bloggers/4305668/posts