Well, this 6'3", 160lb, 17 year old footbal player you call a "kid" was assaulting and battering Zimmerman, who had a broken nose, a bloody face, and had been knocked to the ground while calling for help, at the time he was shot - according to eye witnesses.
But of course, he was BLACK.
So of course you're right, there was no crime being committed by the tender child, who was brutally cut down just as he was turning his life around, simply because he had black skin and was wearing a hoodie.
What does the police report say as far as eyewitness accounts go? Where does it say Zimmerman was knocked to the ground? Maybe Zimmerman, being the aggressor, got out, gave chase, grabbed the guy’s shirt and they both tumbled and it turned into a struggle.
In any case, a stranger was pursuing a kid minding his own business so any self-defense would have been on the part of Trayvon, not Zimmerman.
Oh, and last I checked, 17 is still a kid in America.