***Joey Smith might have been shooting wildly all over the room...***
There is a possibility that the revolver fired more than one barrel when the gun was fired, something these early revolvers were known to do. It is called “flashover.”
Maybe he was shooting at the men in the door while Hyrum was trying to close the door and the second cylinder shot hit Hyrum.
If the Reorganized church still has the bodies stashed maybe we can get a autopsy on Hyrum.
Well there might be much left of Hyrum, but the bullet will still be there...