Ok, Mr. Root Cause Analysis ... Maybe you can do the Five Whys on why the audio tape you seem to assume is accurate doesn’t match with the autopsy report provided by the Brown family’s own examiner?
You are assuming that all the shots fired hit Brown. Common sense would tell you that he might have missed once or twice.
Brown could have turned back to look at Officer Wilson as he was running. If he turned to the right, he could have been shot in the right arm. One of the wounds could have been a graze from behind according to one autopsy report. If this tape is authentic, Officer Wilson has to explain what happened, not me. There doesn’t seem to be enough of a pause for the “taunting” Officer Wilson alleges happened.