You make a great deal of sense, but I don't see how this explains him being found near the front door. The door was either kicked or shot in or both. You wouldn't run toward a door that was just forcefully opened in the middle of the night, without a firearm in hand. And if James was answering a knock at the door that he didn't perceive to be threatening, wouldn't there be time enough, after it became threatening, to at least take several steps away from the door?
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