I honestly can't believe you're still trying to claim everyone who says anything bad about Martin has a racist agenda. There is no reason to cry racism here, so quit trying to strengthen your position by calling others racist. It's pathetic.
What should be done instead is to make sure that the law is changed so that people who do similar stuff in the future can be convicted.
Yeah, we don't want people who defend themselves against an attacker to get off scotch free, do we?
1) Zimmerman had no intention of killing Martin. If he wanted to kill him to start off with, he wouldn't have called the cops just so they could come over and arrest him for murder, and I think we can all agree that Zimmerman isn't some criminal mastermind who manipulated the entire situation so he could kill a man. He just isn't that competent, and even if he wanted to kill Martin he could in no way control Martin's actions. From what I can tell this is also the first time that Zimmerman has even drawn his concealed weapon in all of the confrontations that he's been in, so it's not like he was just itching for a chance to shoot someone.
2) Martin attacked Zimmerman long after Zimmerman stopped following him. If Zimmerman had approached Martin and Martin had attacked him then, Martin could have claimed Stand Your Ground since he may not have known Zimmerman's intentions. Instead he ran away, Zimmerman stopped following him, and Martin turned around and attacked Zimmerman. Martin is the aggressor in this case. Following a man is not a crime (Even if it is stupid).
3) The common claim that Florida's Stand Your Ground law needs to be repealed because of the Zimmerman case is just bonkers. Stand Your Ground wasn't used as part of his defense and had no place in the trial. The whole point of Stand Your Ground is to stand your ground against a potential attacker that's approaching you, since turning away from an assailant is one of the worst things you can do during a confrontation. Its only purpose is to prevent a potential attacker from getting a cheap shot in. Zimmerman was caught by surprise and wasn't even aware of Martin until he was right on top of him. Martin attacked Zimmerman first as far as we can tell, so any chance for this to be a Stand Your Ground case disappeared and it became Self Defense as far as the law is concerned.
4) Zimmerman only shot Martin after he was pinned to the ground and was having his head bashed into concrete. Zimmerman was at risk for a concussion at best, death or brain damage at worst. He took the only option he reasonably could to prevent himself from becoming a drooling paperweight and shot the man who was attacking him. Martin had no ground to stand on: Zimmerman acted in pure self defense.
Even if you went back in time and repealed the Stand Your Ground laws, it wouldn't have changed the verdict. The only thing it potentially would have changed is the police investigation, but probably not even that. The police looked into it and came to the same conclusion as the jury: Self defense. Anyone claiming that Stand Your Ground needs to be repealed because of Martin's death is just using Martin's death as a playing card for political purposes, and you can bet if your time traveling self had repealed Stand Your Ground those same politicians would be attacking something else, such as concealed weapons permits.
So, could you explain why you think that self-defense laws need to be changed in order to punish people who defend themselves against attackers? Do you want to get rid of self defense laws entirely? If not, how exactly do you want self defense laws to work without punishing people who just want to defend themselves?