There is absolutely no proof this did not happen. We know that George had a bloodied nose and a cut on the back of his head, which according to his attorney should have been stitched, but was not. We also know that Trayvon had a fatal gunshot wound but we don’t know if he had any other injuries.
Wow, you want to charge someone with a crime because they can't prove something didn't happen?
That's the exact opposite of our system of justice.
Why are you even on this forum?
“There is absolutely no proof this did not happen”
Stop making big leaps, and trying to fill in the blanks to come to the conclusions you want to come to.