I think you're making the concealed weapon the main point of this. It isn't. Most of your questions merely ask whether or not Zimmerman approached the situation correctly, which is debatable.1. Zimmerman was a Self-Appointed Block Captain; meaning, his neighborhood did not officially recognize him as the Community Watch.
2. The duties of persons on Community Watch are to observe what's going on in the neighborhood and notify Law Enforcement of anything suspicious. They are not to get involved.
3. Though citizens can have the right to carry a firearm, Zimmerman was acting in an "official capacity" (Even though he is not official) and thus should not have been armed. The capacity he is claiming to have been acting under does not authorize a person to carry a firearm and utilize it.
4. A concealed weapon's permit is not a license to use a firearm, it's simply a permit to carry one.
5. The kid was unarmed. He had nothing that even resembled a weapon. There aren't any witnesses who saw what exactly transpired (unless they've recently stepped up), so the fact that an unarmed individual was killed should have warranted a full investigation. The kid's side of the story may never be known.
6. The Emergency Dispatcher instructed Zimmerman not to follow the kid, but he did anyway.
7. Someone, whether it was Zimmerman or the kid, was screaming for help on the Emergency call and after a solitary shot went off, the yelling stopped. If the kid was the one screaming for help, it sounds like he was executed. If it was Zimmerman, why was he not in control of his weapon and why did he shoot an unarmed kid? And why did he stop asking for help? Did he attempt to get help for the kid after he shot him, or did he do nothing?
These 7 things show that there should have been a more thorough investigation. Whether Zimmerman is guilty or not, he should not have been able to freely walk away. So far, Zimmerman seems like the aggressor. The kid wouldn't have tried to grab the gun if it wasn't out already.
By the way; He was not instructed, he was adviced not to follow Martin. Pressumably for his own safety, parhaps.
Carrying a gun doesn't make you invincible. If a young man gets behind your guard before you draw, it's over.
This case, to me, is very straighforward: Whoever screamed for help was not the one lying on top, therefore the other party must've been the mindless agressor. If Martin was the one screaming for help, then Zimmerman should be convicted. If the opposite is true, Zimmerman should go free.
Just FYI; no matter what happens to Zimmerman, the entire case has been blown enough out of proportion so that he'll never get a job again. Congrats, you've all just destroyed a man's life based on suspicion alone. Now that's a hate-crime.