With plenty of time to analyze the situation and with hindsight one can say that, but considering what the officers knew at the time and what they observed, they did what they were trained to do.
I agree with the 'hindsight' issue. Calling the play from a computer screen, and being faced with an 'unknown' and possibly 'under the influence' citizen who is reportedly armed are two different things.
That still doesn't explain the last bullet in the back, while he was laying on the ground.
As a wise poster on another site said: "The idea that one should have to be calmer, more thoughtful, and more disciplined than the police in order to survive a confrontation is silly."
Mosher panicked. This read is absolutely damning, and we haven't even got to the federal trial yet:
http://confederateyankee.mu.nu/archives/306409.php
It was written by a veteran of nearly two decades of civilian police service, Mike McDaniel (http://confederateyankee.mu.nu/archives/305948.php)