Particularly with the hand at the waistband? I'd be thinking "gun", plus his accomplice is still around somewhere.
Yea, and frankly I would also say that Brown's "community" in Ferguson is in the process as we speak of proving why cops are justified in being even more cautious while dealing with criminals there.
Cops know what neighborhoods shun their criminals, and what neighborhoods embrace them instead.
It's very different to police the type of area where the general populace and the criminal element blend seamlessly together with no clear line of demarcation, and the general populace feel great sympathy for, and identify with their criminal element. They circle the wagons around them and help them avoid capture, they adhere to "no snitching" ethos for them, and deal with a lot of things "in house" which other communities would contact law enforcement about.
I don't think it would be out of bounds for cops to legitimately fear they might be ganged up on by bystanders in such an area, and attacked. I believe a major factor in Oscar Grant being accidentally shot was the hostile, loud, angry crowd which had gathered and made the cops' have to worry what they might do. That cop was far more nervous than he needed to be because of them.
The GJ's findings just firm up everything about my impressions of that area. There are some good people, but there are tons who will lie to cops without any hesitation if they think it represents an opportunity to strike out at whites/cops and score one for their team.
The recently released audio of police radioing in that "we're going to have a problem here" and the apparent fact that a big factor in not being able to remove the body sooner was the community blocking them and making their job more difficult... all reinforce my point which is again, it is very different to police certain areas than others.
And it's entirely understandable for cops to factor in that they are in hostile territory and not exactly go into "hair trigger" or "zero tolerance" mode, but perhaps something closer to that than if they were in Mayberry.