Who says he "returned"? Zimmerman? Wasn't he the one who said Martin was hiding behind a bush before he was assaulted? You know the "shrub" that news men exposed which couldn't hid a small child, much less a teenager? That makes Zimmerman a LIAR, and Martin can't say otherwise as dead men tell no tales.
Zimmerman pursued in a car, and when he couldn't see Martin GOT OUT OF HIS CAR, ARMED, LOOKING FOR HIM. Martin was in fight or flight mode...he fled, then chose to fight.
Stand your ground laws work when the defendant fears for his life. Being chased by a "creepy cracka" when all you are doing is walking home constitutes fear in a black man whether you accept/ believe/acknowledge that or not.
but hey, far as you are concerned the blacks and liberals lost, so it's all good.
And there you have it. Black men have more rights. And should be allowed to do more illegal stuff.