Sorry if this has been answered.
Is there a scenario that explains Brown's wounds and is consistent with the testimony of Wilson?
I've always had difficulty reconciling the two.
Wilson claims that Brown had his hand over the gun when the first shot was fired, this is consistent with the wound to the hand and lower arm od Brown, which is the only close contact wound.
Wilson that claims to have fired a second time, but was unsure if this shot hit. Brown did have a wound to the arm that was a graze, and this shot might have caused it, but it's impossible to tell.
These claims are consistent with the shell casings and blood evidence found at the scene.
Next Wilson claims that Brown ran and that he fired at him again. This is actually inconsistent with the evidence as there are no casings to support him having fired after exiting the vehicle and pursing Brown, nor are there unaccounted for rounds missing from his weapon.
Wilson then claims that Brown stopped, and turned towards him, bulking up and after a hop like step came at him head down at which point he fire a round of shots. The consistency here is an unknown as we don't know when Brown was hit, it is possible that he received the graze to this arm during this part. It is highly unlikely that Brown received any of the torso wound, and also unlikely that he was hit in the arm at this point, thought he may have received the through and through to his arm as well at this point. We know from the audio that Wilson fired 6 shots at this point.
Whenever the through and through occurred, it did so while Brown's hands were down because had they been up it would have rotated the upper arm, and the bullet would not have been able to enter the front upper arm and exit the back of the arm as was shown in the autopsy.
Wilson claims that Brown slowed, and then came on at him, during which time he paused his shooting, this is confirmed by the audio that places a 2 second pause between volleys.
Wilson then claims that Brown was coming at him and all he could see was the top of his head because he was bent over in the charge. This is consistent with the three bullets that struck Brown and travelled into his torso. One hit just below the clavicle and stopped at the 8th rib, one struck his forehead and travelled down to stop at the 5th rib, and the final shot entered the top of Brown's head, dropping him instantly. These shots could only have been made by a shooter directly inline with Brown's head and torso, so either Wilson was standing 10 feet above him, or Brown was bent at the waist with his head down, these are the only ways to explain these three bullets, particularly the one that struck his forehead.
The Audio tells us that Wilson fired 4 times in the second volley.
This is consistent with the 10 shells that were recovered where Wilson had been firing from.
There was one bullet left in the gun, making a total of 13, which is consistent with his weapon, 12 in the mag, 1 in the chamber.
So yes, Wilsons story is remarkably consistent with the physical evidence and the autopsy results.