You left out the part where he stalked a teen and ignored police orders.
Oh, and the fact that he killed said teen.
I am by no means defending Zimmerman but stalking has a very strict legal denotation (following =/= stalking) and he was not in contact with the police on the phone. It was a non-emergency dispatcher who had no legal authority whatsoever. He suggested Zimmerman to not follow anyone for liability purposes.
I don't think anyone is going deny that he did kill someone though.