True. For example, the witness Jonathon believes the "screams" were coming from the person on the bottom, not becasue he really could tell but becasue it seems logical to him that the person on the bottom would be the one screaming.
But, its also logical that if the person on the bottom has a gun, which is a fact in this case, and the person on top is trying not to get shot, he could be screaming for help.
An example of how our brain thinks it sees and hears things that it thinks make sense, even if it isn't necessarily realityl.
If there was a struggle for the gun, why is it only apparent on Zimmerman's head?
If Zimmerman had the gun out, why did Martin have time for a Ground and Pound?
It's reasonable to suggest that Martin's Aggravated Assault and Battery against Zimmerman would not have had time to occur during a struggle over the gun. Perhaps Martin would have been focused on the weapon instead of Zimmerman's head.
Second, did you HEAR the tape? Zimmerman's tone is quite clearly his own. It's remarkable that anyone is guessing as to what they're hearing on it, going so far as to question witness testimony as if the screaming is in dispute. Maybe for you it is, if you ignore all the circumstances of this case, and you did not hear and/or ignore the audio recording... but you can't do all that and carry on a reasonable conversation about this case.
Third, if Martin had time to scream, why did he not - IN ANY WAY - move to avoid the gun? He was still on top of Zimmerman during the shot, as ballistics prove. At no point did he retreat from Zimmerman after he began his Aggravated Assault and Battery. At no point did Martin attempt to avoid the Lethal Force which was legal to stop him with.
Well maybe... what if... its possible... NO!
Occam's razor dictates the simple explanation. The one we have evidence for. A lack of evidence does not yield guilt by possible means. You must convict BEYOND A REASONABLE DOUBT. You do not arrive beyond a reasonable doubt by injecting doubt into the circumstances.
It's quite simple. Lethal Force was used to stop Aggravated Assault and Battery. The man screaming was the one getting his !@# kicked. The only man injured during the "fight". Case closed.