“and being inadequately familiar with it had an accidental discharge when Oswald started firing”
See, I wonder why anyone bothers to come up with an alternative theory under those circumstances. Given that it was physically possible for Oswald to have shot him, and the wounds were consistent with Oswald’s position, the overwhelming odds against the coincidence of a well-trained agent accidentally killing the man he has sworn to protect at the exact same moment someone else is trying to kill him are prohibitive against me believing the scenario. Man, do conspiracy nuts ever bend over backwards.
And to think that’s the best they’ve come up with!