The dog was released and the perp moved the gun - barely - and how ever many cops there were opened up. Consider how tense the situation was and how the instant one fired, everyone reacted. Their aim wasn't perfect and the dog entered the kill zone in that instant. A tragedy, but that's why they send in a dog and not a rookie officer. Should the cops have waited to see if the perp made good on his thirteen shot, gonna shoot everything threat? No, the one who screwed up bigtime was the perp. And notice how the bad guys know video will make the cops look bad. The threat didn't work but enough of these incidents and the cops will start walking away.
Looked to me like he was tossing the gun down when the cops opened fire.
He had a gun and was threatening the officers. They should have just fired one shot after he refused to drop his gun (repeatedly). Why they let the dog loose I don't understand.
I see this "attitude" in this culture everyday. A complete lack of respect for authority. If I had been on that scene, I would not have done anything differntly. All the "good guys" went home to their families albeit minis one of "mans best friends".
I would like to make a comment on the officer's gun control. "Nice grouping of your shots"!