Since TM didn't know Zimmerman was armed this is a stupid statement. He would have been no less vicious if Zimmerman had not been armed since he was not aware of the gun when he started his attack.
Zimmerman would be dead now if he hadn't been armed. To blame this on Zimmerman being armed is ridiculous, it is entirely on TM.
We do not know Trayvon threw the first punch. That is Zimmerman's story and the police were unable to prove otherwise with the evidence. That does not mean it's the truth, only that it can't be disproven.
Trayvon, were he alive, might have quite a different story to tell. But he can't tell his side, can he? Doesn't mean it doesn't exist.
I never said the presence of the gun caused the fight. By George's own statement Trayvon became aware of the presence of the gun at some point during the fight and at that point George felt he had to shoot him to keep Trayvon from getting the gun. IOW, George had to escalate the level of violence to protect himself.
I find it quite easy to believe that at that same moment Trayvon also became aware he was in a fight for his life and attacked with greater intensity. I know I would.