His head was apparently on the sidewalk for part or all of the fight
They were in the grass when he shot him, not on the sidewalk. So how can he be bashing his head into the sidewalk when he got shot?
And if he wasn't bashing his head into the sidewalk at the time, I guess it wasn't self defense... right?
And he wasn't shot half on and half off the sidewalk, he was away from the sidewalk and in the grass.
So how did they get over there with Martin still on top bashing his head into the sidewalk?
And the video goes directly to the character of Zimmerman and how he was a bigot who liked "Hitting Mexicans" while driving around with his hommies