The danger is paramount with those fighting, moving around, appearing to surrender, then getting back into the fight from another angle. WAY too much going on there to cover anyone's back for very long. They needed back-up, and lots of it. But, being a small town, it wasn't available.
This. As seen with the North Charlston incident one officer can deal with someone running away:
but if the civilians are staying in the area, there needs to be at least 10 officers to every civilian for the police to triumph as seen here.
"My message to my troops is if you see anybody carrying a gun on the streets of Milwaukee, we'll put them on the ground, take the gun away and then decide whether you have a right to carry it." - Milwaukee Police Chief Ed Flynn
