there's a difference between being in a "heightened state" (i.e adrenaline pumping) and "freezing", which is what the cop did. he stood pointing the gun at the driver for a good couple of minutes after it was clear he posed no threat and was dying.
he should have been radioing for medical assistance and attempting to administer first aid instead he stood frozen to the spot. that says one of two things. one, he generally does not act well under pressure and doesn't have the temperament for that job or he realised just how badly he had fked up and that's what rendered him inactive.
What The Cop Realized Is That The Perp Might Still Be Playing Possum, And There Was A Loose Gun Somewhere. Cops Don't Administer First Aid In Those Situations, And You Don't Know Whether Or Not The Cops Called For Medical Assistance. Though I'm Sure They Did, Since That Would Be SOP.
Why Is It That Every Time A Negroid Is Shot, The Cops Are Supposed To Be Super Human In Their Responses, While The Negroid Is Acting Like Violent Stupid Asshole, And That Just Fine?