Not excusing the officer, but ... if the greasy fuck would have suspended his 'hood attitude for one bloody minute he'd still be alive.
When a peace officer has his firearm pointed at you and demands you follow his directions, just do it. How difficult is this?
This wasn't some isolated alley in the dead of night with not another soul around.
Do what's told of you and before you know it you're on your way.
And if you've been up to no good, well, you're busted. Take it like a man.