There is no evidence that anyone slammed his head into the concrete or he had a broken nose.. He could have got those two very small cuts from a number of things.
It is beyond stupid to claim that there is no evidence that Zimmerman's nose was broken.
It is almost as silly to claim that there is no evidence that his head was pounded into the concrete.
Where is the blood, fool?
The blood clotted before it reached his shirt. No blood on neck of shirt. The blood did not even travel the full length of his neck.
These were superficial flesh injuries. He did not even need stitches or a dressing on it.
They did not even bother to x=ray Z's nose which proves it was not broken.