Sorry, mistype. Meant GSR
Gunshot Residue.
If he was fighting with the cop struggling over the gun in the cops vehicle when it discharged he’ll have trace evidence on his hands/wrists.
..........the thing I think you have steered me to is toxicology. If he were HIGH on some drug, that could corroborate the allegation that he “bull charged the cop”.........
IF he did “bull charge” the cop while HIGH and after being whipped up on pretty bad once a minute or so earlier, the cop was within his rights to fire.
Simple as that, and those bullets once airborne don’t have a recall feature!
And, this helps explain a second autopsy.