The attempts at framing Oswald to be a pro Cuban assassin point back to the two groups that teamed up to take Castro down, Mafia and CIA.

BTW, it's a classic Mafia tactic to whack secondary targets (Oswald) and make it look as if your primary target was guilty of the hit, so that you then have clearance to whack the primary target. In this scenario, the primary target over Oswald, was Castro.

"For us, rubbin'out a Mustache was just like makin' way for a new building, like we was in the construction business."