1) There's no evidence of Martin committing any crimes.
2) Zimmerman probably assaulted Martin just in following him.
Zimmerman is an idiot. Had Martin ACTUALLY been committing a crime (say stealing Motel Furniture), Martin would've shot and killed Zimmerman on the spot.
(http://news.yahoo.co...ry-225711466.html)
IMO, someone in the Sanford Police Dept is trying to protect Zimmerman (relative?). They did a piss-poor job. (They should've charged him with felony assault and then plea bargained it down later).
Now not only is Zimmerman going to (eventually) get tried with manslaughter but it's also going to be a review of SYG. My guess is at least the civil side of SYG is going to be shot down.