When the defense pounds away for weeks on the minutiae, they parse each second of events as barely seen by witnesses. The jury is bombarded by information overload. It's all one sided and speculative and dependent on the far sides of the envelope of evidence interpretation.
Martin is dead and silenced.
The chances of conviction under the bizarre aspects of FL code - SYG, and the mightily stringent qualifications for second degree murder - means that Zimmerman may very well go free.
So keep that in mind, teens, that you can be stalked and shot for walking home.