The core of the story doesn't have room to change. It happened in such a small time frame and no one can dispute the fact that GZ killed TM, not even GZ. Those small aspects and the fact that GZ feels the need to alter them hold a lot of weight for me, IMO. GZ's demeanor is very reserved and devoid of emotion. That may have given him an advantage during a lie detector test. There's a reason lie detector tests are not included during trials. They can't be relied on. And certainly you would know a skip from a run.
Now that the trial is over: There was a moment during the in court playing of the Sean Hannity interview where it looked liked GZ was at home in a recliner and he could have been watching a movie or show while munching on some popcorn and sippin' a coke. When the lights came back up, he sat back up, from his reclining position, and while adjusting his jacket he turned in the direction of the peanut gallery..with a look of pride and satisfaction, the Cheshire grin made me fully aware that this man is a true narcissist and he was quite proud of himself.
It was at that moment, that any room for error in my opinion of GZ, disappeared completely. I was 100% certain that he could care less about the lives of others. I got the sense that he didn't even grasp that others might look upon his end comments (God's will...no he wouldn't do anything different) as cruel, insensitive and disgusting.
In the closing rebuttal by the State or just before, he looked liked he was furious and about to blow his top. The quiet ones are often the ones who have the most pent up anger and hostility. IMO, it takes that one last thing (maybe Trayvon was about to get away) to blow the gasket. IMO.
Another time this week, the camera shifted during BDLR's remarks and GZ, although his expression didn't change, looked angry. They panned to his hands and they were the tightest fist I have ever seen.
He, IMO, has no remorse. He is as guilty as sin, IMO.