I can’t figure why George waited so long to shoot, maybe he even forgot he had the gun. For sure, George did not want to hurt anyone, he had no choice.
He talks about that in his reenactment. The reenactment is mandatory viewing:
http://www.youtube.com/watch?v=7qfkRTC5gF4
Zimmerman was on his back on the ground under Martin, squirming to try to move his head away from the concrete. That pulled open Zimmerman's jacket, revealing the gun to Martin. Martin said, "You're doing to die tonight motherf*****" and went for Zimmerman's gun. George got to it first, and used it immediately.
So yes, maybe he forgot about the gun until Martin tried to grab it. I guess having your nose broken and your head pounded on concrete might make anyone a little absent-minded.
It is just amazing to hear Zimmerman's story so wildly distorted by those with a racial agenda.