Not exactly, that easy, there is no legal justification to "Attack" he can only "Defend" himself, this is going to be a twisted convolution of wording when it gets to court...
Things that have made me go Hmmmm so far
1. The Media
2. No Grand Jury
3. Zimmerman's injuries to the back of the head
I think this really will boil down to who engaged, who actually initiated contact...