I would have gone after the gun to if somebody was stalking me...if he did attack first, my guess is that he saw the gun and was scared #$#$@#$
common sense tells me that if someone is following me around in a car, and i try to dodge them and they catch up to me and i see a gun...i have every right to go after them and try to protect myself...I wouldn't run away, i would be afraid they would shoot me in the back, and i'm pretty sure i would do my best to disarm them...
zimmerman started this whole chain of events by following him, trayvon did not instigate any thing, he tried to get away, (i think thats pretty obvious from the 911 call and the girlfriend)
I wonder what would have happened if trayvon had gotten the gun and shot zimmerman, i'm assuming that he would have been protected under that law because he would have been standing his ground...but somehow, I just don't think that would have happened...
again with my common sense, if it was me and some guy following me with a gun, I would obviously think that person was up to no good...and i would fight like crazy....jmo...but i think that could very well be what happened...