OK - I saw the video. I did not know it was out. What I saw ..
1-He does inform the officer that he has a legal firearm on him.
2-The officer panics
3-He must be moving his hands about, opposed to keeping them still, visible on the wheel or the dash let I was trained to do, as the officer says several times, do not pull it out.
4- Things go horribly wrong.
I was not at the trial, seeing other evidence. Not sure why 12 voted to let him go, BUT with just the distant video from from the Police car, I would vote to convict on...
Voluntary Manslaughter.
Voluntary manslaughter occurs either when the defendant (Officer) is strongly provoked (under circumstances that could similarly provoke a reasonable person) and kills in the heat of passion aroused by that provocation. However, there are mitigating circumstances that reduce culpability, or when the defendant kills only with an intent to cause serious bodily harm.
The officer also yells "don't move" after he has pumped him with bullets.
So, I'm not taking clues off of what the cops says on the video.