Shocking that this is even in question...
My guess is that the guy didn't have a CCW permit or violated CA's storage laws. He allegedly retrieved the gun from a bag. I'm not bemoaning a gun in a bag, but the Sacramento homicide detectives may.
I can't quote case law like GSG and some of you other guys, but in my opinion, why should you have to "duke it out" with some @hole if you are armed?
Well since you lit up the Batsignal
:
http://www.haroldfishdefense.org/
Do some reading on that guy's case where he shot a much larger unarmed man and got himself some prison time for it. I believe that in a true case of disparity of force it's acceptable. The issue is that I've read countless threads on gun forums where people say how they'd shoot if someone cocked their arm, yelled at their wife or
threw a shoe at the window of their taxi cab. IMO there's real danger in telling this to people who have no training, no experience with violence, and a carry gun purchased as the result of a mid life crisis or something.
They also train police in "officer / subject factors" which state that you have discretion depending on the size of the subject, any prior knowledge of the subject like if he has any martial arts training, etc. If a 150 lb. cop gets attacked by an unarmed 250 pound guy, he can draw and shoot without going through the other steps in use of force. As long as a reasonable and prudent person would be in fear for their life, it will fly.
That's sort of simplifying things. There's factors that the officer needs to be able to specifically articulate, such as fighting to the point of exhaustion before getting to lethal force, multiple attackers, statements made by and body language of the attacker(s), situational factors/weapons of opportunity, and other similar things based on the totality of the circumstances. Even then these cases are highly scrutinized and often have career ending or damaging affects on the cop, even if it was 100% justified.
Most of these civilian shootings would probably be much different if the shooter could walk the officer through his escalation (or de-escalation) in the use of force.
While his trial was playing out in the news, I read the entire transcripts of Harold Fish's 2-3 interviews with detectives where he did exactly this, including one discussion at the scene of the shooting a week or two later. He totally screwed himself doing so, partially (IMO anyway) because of the way that the mind naturally processes extremely stressful situations.
That's one of the reasons i'm amazed that most CCW'ers don't carry pepperspray ... it's a good way to show in a use of force incident that you attempted to use force in an appropriate way as they (the police) would in a similar situation.
I used to include it in my carry setup. In my experience it's a great way to clear a room or soften up a determined fighter a little bit, but if they want to put their hands on you it's going to happen, OC or not. I don't like that it requires so much more attention than a gun or knife.