Self defense is not following someone and messing with them, dang. If he had stayed in his car and played with his gun until a real cop got there, which was a waste of the cops time, he, zimmerman, would not be looking at jail and someone wasting his rear.
What Zimmerman did in his car is none of your damn business...and what you play with in your car is none of HIS damn business...and NEITHER of which has ANYTHING to do with ANYTHING relating to being jumped/mugged/pinned and screaming/pummeled from behind...nowhere to go. WOW. You’re not very bright, are you?
That make any sense to you?