Here's my problem. Can someone explain why Martin would attack Z if Z was doing nothing wrong?

[Sancho]

50. If you believe any of the witnesses...

...that Martin said, "why are you following me?", or "let me go" (girlfriend)

...or there were two voices talking back and forth (phone witness) before the fight

...or there was running, scuffling shoes (phone witness)

Then, before the fight GZ must have confronted, stopped, or tackled TM. In other words, Martin was heading home, running, or trying to get away.

Any conversation before the fight could only be GZ "arresting" or intercepting TM. As such, the only reason for a fight was TM trying to get away.

GZ has a history of 1.) arrest in a bar where he punched an undercover cop 2.) restraining order by a girlfriend 3.) getting fired from a job for manhandling an old lady. None of that is admissible but he clearly has a history of confronting or attacking others - particularly weaker opponents. He was taking martial arts training at the local gym. EVERYTHING points to GZ attaching TM; but I suspect in Sanford he will walk. It's a racist town and the jury will side with him.