You don't even know where hamburger comes from and you're going to play CSI - Location Hidden for us?<quoted text>
I'm not convinced Martin was "bashing his head on the concrete". The wounds Zimmerman had were consistent with someone on the bottom who was raising their head (a natural inclination) thus getting his head bounced off the pavement with every punch. One head bash on the concrete would be enough for unconsciousness or disorientation to the point he wouldn't have been able to defend himself. I think his wounds were from when he first hit the pavement and in reaction to getting punched.
In the end, George wanted to be a tough guy but when things went south for him he took the pussy way out.
Better yet, tell us how your male Chihuahua got pregnant:]