Being called nutty by someone who has the tendency to take the right-wing/batshitcrazy side of issues really is a compliment. Not far off of how Yoda would respond to Palpatine calling the Jedi Master "nutty."
He deserves to get something. Just not murder or homicide. The prosecution over-charged, plain and simple.
I'd so the only mistake the prosecution has made is general incompetence. So many arguments they failed to pick up on using against the defense witnesses, stuff that I caught myself, and stuff that has been pointed out by the dozens or so lawyers/judges I've seen covering the case.
Now if the prosecution had tried pushing for 1st degree murder, then yes, they would have overcharged. I will say though, I think Zimmerman had been aching for a chance to shoot one of "these assholes" for a while. The man clearly profiled Martin, just like he's apparently profiled every other black youth he sees. I don't care if he is part hispanic, the man is a fucking racist, at least against blacks.
For me, the perfect punishment for Zimmerman would be to have him dumped in the center of Compton, naked except for the paint on his back saying identifying him for the racist gun-loving piece of shit he is.