So I am curious about a possibility. Understand this is just a possibility, please don't misrepresent my comments as saying I think this is what happened.
Another poster earlier mentioned Trayvon as having played ball with some of the kids living up closer to the clubhouse and that maybe he was looking around to see if any were home so he could seek shelter from the rain with them. I've observed several seemingly unrelated things that might look different if they all converged into one perfect storm.
Could GZ have seen Trayvon around the complex before, maybe hanging with his 20 year old cousin, maybe playing ball with the younger kids?
GZ was known to be aggravated by playing kids. He was reported to follow other residents home in a threatening-like demeanor. He seemed to like feeling that he ruled and could intimidate people into staying out of his way. Remember, all he had to do was call LE and he did this HOW many times?
Might he have actually seen and known who Trayvon was before calling 911 that night? Might Trayvon have refused to do GZ's required song and dance, maybe 'disrespected' him when he tried to bully the younger kids? Might the "@ssholes who always got away" and "not this one" actually have been designed to set Trayvon specifically up to look like a burglar for doing nothing more than refusing to cowtow to GZ's bullying? Might his leading statements to the 911 dispatcher on the phone been setting up an alibi for an act he had already decided to commit?
Because if the recording of Trayvon's last moments, which I'm sure GZ didn't count on, bears out his practically begging for his life, yelling for help, saying no, no right before being shot face down while GZ straddled him (please, these are IFs), then I'm not sure I could ever believe there hadn't been SOME prior event that enraged GZ enough to do this.
It's just a thought, but it sure could explain some inextricably unexplainable odd things that GZ said and did that don't make sense to many of us.
But, now, don't go saying I've convicted him, because I haven't. I'm just posing these questions.