If you want to cut to the chase: the Warren Commission’s conclusion wins by default: Kennedy probably- repeat, probably - was not the victim of a conspiracy. That conclusion wins not because it is definitive, but because it is less improbable than any of the conspiracy theories—all of which are even more flawed than the Warren Commission Report.

But, because the Warren Commission conclusion is less improbable than the conspiracy theories, doesn't make it a case-closer--not by far. Given the indecent haste of the commission’s work, the large amount of potentially significant information either deliberately withheld from the commission by the FBi and CIA, or not looked-for by the Commission, and the passage of a half century, the only reasonably credible certainty is that the case will never be closed.