Best motives

[Michael O'Brian]

I suppose the biggest question I have about that is why it would require such a massive coverup

How could they ever let the world know that racists alligned to the british had killed the POTUS it would have caused massive unrest, it was easier to continue with framing the patsy, and it also allowed the momentum for Vietnam, because all of the thick brainwashed G.I.'s believed that the communists had killed their President.

[Jon Banks]

In order, here are my top three:

3. The anti-Castro Cuban Exiles because they were pissed about the Bay of Pigs and thought JFK sold them out to in order to end the Cuban Missile Crisis.

2. Ultra-Rightwingers like General Edwin Walker. Those people violently opposed the Civil Rights movement and as JFK became more involved their anger towards him grew.

1. The American Mafia. The Kennedy administration was the first to attempt to take down the Mafia and they had some success. Also Mob Boss, Carlos Marcelo was humiliated by the Kennedys so he had a personal vendetta.

[Michael O'Brian]

In order, here are my top three:

3. The anti-Castro Cuban Exiles because they were xxxxxx about the Bay of Pigs and thought JFK sold them out to in order to end the Cuban Missile Crisis.

2. Ultra-Rightwingers like General Edwin Walker. Those people violently opposed the Civil Rights movement and as JFK became more involved their anger towards him grew.

1. The American Mafia. The Kennedy administration was the first to attempt to take down the Mafia and they had some success. Also Mob Boss, Carlos Marcelo was humiliated by the Kennedys so he had a personal vendetta.

Thanks for the input Jon, option 2 is the only viable conspiracy that would work to allow such a successful hit, ie to ease of access to the TSBD building etc, and Greers help, the KKK and links with other terrorists such as the Orange order allowed the following coverup to go so well, these guys had men and women working in just about every nook and cranny in the South. 

[Michael O'Brian]

I have a simple conspiracy theory in which LBJ and the owner of the TSBD, Harold Byrd, conspire indirectly, to allow Oswald as much opportunity as possible to do the shooting.

The kkk were working all over that building and the surrounding area, they made it look like Oswald did it, according to Milteers prediction.

[Colin Crow]

Actually the Kennedys appear to have been interested in that: assassinating foreign leaders.

Do tell Jerry.....based on what?

[Robert Reeves]

For starters, Operations Mongoose and Bounty, and the Lansdale "die plan" memo of March 16, 1962.

According to the book "Brothers in Arms,": "The language of the memo speaks for itself. The only thing that Robert Kennedy can be referring to is the assassination of Castro."
There is probably no direct full-disclosure admission from the Kennedys or CIA that they planned to assassinate foreign leaders because they protected themselves with "plausible deniability".

Rafael Trujillo -- JFK inherited the CIA assassination plan from Eisenhower, just like the plots to wipe out Castro. JFK & Bobby agreed to carry them through -- on their watch. Certainly Bobby knew what was going on with Castro.

And it could be argued JFK wanted Diem out.

[Colin Crow]

For starters, Operations Mongoose and Bounty, and the Lansdale "die plan" memo of March 16, 1962.

According to the book "Brothers in Arms,": "The language of the memo speaks for itself. The only thing that Robert Kennedy can be referring to is the assassination of Castro."
There is probably no direct full-disclosure admission from the Kennedys or CIA that they planned to assassinate foreign leaders because they protected themselves with "plausible deniability".

This is the book "Brothers in Arms" by Gus Russo and Stephen Molton. It talks of a Lansdale memo arising following the meeting referred to. It is without corroboration and presumably in Lansdales' words and should be recognised as such. The CIA plots against certain leaders were instigated during the Eisenhower presidency and, as the Church Committee discovered, likely conveniently continued in the absence of approval by the President. eg. the instruction from JFK to Dearborn,less a than a year earlier, the day before Trujillo was assassinated that " the United States must not run the risk of being associated with political assassination, since the United States, as a matter of general policy, could not condone assassination."