Chances are he probably will get off, but come on. If you are a 17 year old male with some size and strength, and some strange dude in a truck was following you as you walked towards your dad's apartment, then that dude gets out asking you what you are doing...you tell him to fuck off, and if he gets out of the truck and he's walking towards you annoyed at your "fuck off", you walk right at him, too, and if needed...you kick his ass. And if he pulls a gun out, you freak out and yell for help. So, yeah, if only Zimmerman would tell the truth, that's probably close to what happened.
If anyone thinks that because Martin may have faced down Zimmerman and started a fight with him, that that makes it okay for Zimmerman to shoot? Fuck off. I used to walk a mile from the train station every day from work. A few times, shady assholes pulled up along side me in their cars, asking me if I want to ride, I said no thanks, they said "cunt" or "bitch", w/e. I said fuck off, creep. My heart thudding and shaking with both fear and anger. If they had gotten out of their car and walked towards me, I'd have done everything my crappy weak little female body is capable of with an adrenaline rush to try to kick their ass. If they shot me dead, that's a fucking murder. Zimmerman was never a security guard there nor was he on the neighborhood watch committee. He was a fucking wannabe, who failed twice on applying to police academies. He flagrantly disobeyed the 911 operations Police Officer to not follow Martin (Sanford 911 calls get transferred to the police HQ directly). He not only kept following, he got out and ran after Martin, then he yelled at Martin, the rest is lost in garbles and background noise and somebody screaming for help in a high stressed voice, 10 times in 16 seconds, then....silence.