The only honest answer would be: we don't know!
Anybody who is interested in this case is working on second hand information and a story put together by talented lawyers. Some of us believe it, some of us have doubts about it and others simply don't believe it at all.
But no matter in which group you are, one thing is for sure; you have never been able to investigate the case with full access to all the evidence (so, not only what the WC published), so all you have is an opinion.
That, by itself is no problem. People have opinions about all sorts of things. There are still some idiots who think Trump is good for the country (yes, that's my opinion), but it gets tricky when opinions are being presented as fact, when the person doing that really hasn't got a clue about his opinion being right or wrong.
Is it possible that Oswald killed Kennedy and Tippit? Yes, of course that's possible!. Is it possible that Oswald was indeed a patsy as he said? Again, yes, that's possible! Is it possible there was a conspiracy prior to the fact? Sure, despite the absence of evidence, it's still possible! And is it possible that there was a conspiracy after the fact, to wrap the case around an already dead Oswald? Yes, given the track record of the DPD and Henry Wade in the sixties, that's possible also.
And all this, in my opinion, makes the question asked in the opening post obsolete.