I certainly don't consider an unarmed person to be "none lethal"... especially when you know what kinds of force the human body can deliver in a punch, chock etc. There was a show on discovery channel, showing how much force and damage the human body takes from hits to the face, neck, chest, abdomen etc... there are cases where people have dead from internal bleeding, and some have been chocked to death after a lose of consciousness. To me, within close proximity, the human body is certainly lethal without question, even more so when the perpetrator is stronger, or there are multiple perpetrators.
I read this post here, and it got me thinking about how threatening an unarmed person is: http://www.defensivecarry.com/vbulle...-carrying.html
This case sounds very similar, caught on camera a permit holder shooting and killing someone who was unarmed, but was about to strike him in the face with a trash can lid. No charges were filed against him.
LiveLeak.com - Fatal Shooting At Gas Station.
So, if you were in a situation, were the perpetrator was unarmed, why would the use of deadly force not be an option, especially if the perp got SEVERAL LOUD warnings to stay back and there was no mode of escape?
How do you know that the person is not on drugs, and wont KO you only to either chock you to death, or use your own weapon to finish you off?
IMHO, it does not matter if the victim was in his mid 20s or if it was a 60 year old grand mother, to me, the person is justified using their firearm if they felt their life was in danger... but obviously an unarmed attacker has to be closer than an armed attacker (has gun) and there general is no mode of escape (some states have a "stand your ground law" and some have a 'duty to retreat' law like MD, NY,NJ etc).
IMHO, if I can't get out of a situation like that, I certainly won't try to 'fist fight' for fear that the attacker might KO me and chock me to death or using my own weapon against me (if you are KOed, and they rifled through your waist for cash, then YES, they could find you are armed and use your own weapon to finish you off.)
I can understand someone using pepper spray or a taser under such situations though, but if those things were not present, I can't understand why using a firearm were "unjustifiable."
There are lots of people dead today from hand to hand combat, I use to volunteer down at shock trauma Baltimore, and saw people with sever head injures causing by strong blows.... their faces were swollen, then there are lacerations, and possible bleeding in the brain... A fist is lethal, especially stronger perp or multiple perps.