..............hmmm..............good take. Hate to show my ignorance but what is GSW? I presume it is some kind of drug. If so, your right and that will explain the whole thing. Obviously the cop, having good sense, was not about to let this 290 lb guy high on something have a second go at him. If this turns out to be the case, I don’t blame him.
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.