Well, let's see what evidence we have so far.
Injuries to Zimmerman's face, scalp and back consistent with being assaulted. Abrasions on Martin's knuckles. Eyewitness report that puts Martin on top of Zimmerman.
Seems to me that, by at least a preponderance of the evidence, that Martin attacked Zimmerman. And by the admission under oath of an investigator, they have no evidence to contradict Zimmerman's version of events. And the only 'evidence' the prosecutor has relied upon is pure hearsay.
So do us all a favor and give your pointless point a rest.
I think wtc911’s intent was to provide evidence that Martin was the first to assualt. If that is what is asked, then, no - there is no such evidence.
Z could have grabbed M’s arm (assault) prompting M to punch Z in “self-defense”.
Ultimately, though, that is irrelevant to the shooting.
Also, witnesses have said that the ungodly screams heard on the audio was Zimmerman, not Martin.