I may be wrong, but Zimmerman had permanent residence in the housing development and TM did not, correct? If TM lived there then I'm wrong, I thought he was just visiting.
I'm not saying it's a big deal, just that one flat out live there and the other did not.
A lot of you are trying to hold on to the idea that Zimmerman started this because he followed him. Sure, had Zimmerman not followed him we wouldn't be here now. It doesn't though from a legal stand point because it wasn't illegal. All that matters legally is who started the initial contact, verbally but especially physically.
I totally concede that yeah, it may not have been the best idea to follow him in the first place. It doesn't matter though. It may from a moral standpoint if you want to just discuss that issue, but it doesn't matter legally. There is a reason that neither side is latching onto that part of the situation. They know it's pointless to go there, for the most part.
If Zimmerman was following him shouting out at him, or had his gun pulled and was holding it, or anything like that then it would be a different story. Again, I could be wrong, but I'm faily sure he was just following him and that's it. If I'm wrong on that, let me know.