I strongly feel that GZ, in his zeal to keep this [insert A word used in call with dispatch] from getting away with "it" like they always do, is responsible for the wrongful death of TM.
However, I also feel that there are no angels and devils in this situation. GZ was angry (maybe rightfully) about the crime rise in his neighborhood and was over the line in his actions as citizen on a grocery run OR neighborhood watch captain. GZ is no saint saving the neighborhood IMO.
TM is no perfect child, no spotless angelic innocent. TM is far from deserving of being killed IMO. GZ is far from deserving a pass from the scrutiny he now faces IMO
I feel that TM was doing nothing wrong, was in an unfamiliar environment, it is dark, rainy, and a strange man is following him and giving him undue, unwelcome attention.
Teenage boys are all full of hormones and the need to be men. Teenage boys place a lot of value on "face" and how others perceive them. Particularly other males. From my own experience with teen boys, they often, when feeling unsure or threatened will puff up and get their swagger on, hoping to appear manly and not like someone weak, to be further messed with.
I think this explains his alleged response of confronting GZ with words to the effect of "what's your problem?" or "Do you have a problem?" - Posturing. An attempt at showing he was not frightened or intimidated by this strange man. I guess, for me, I hold the adult in the situation to a higher standard of thought, consideration, understanding of possible consequences of the actions they take.
I find it illogical to debate why TM did not call 911 or run from GZ. Teenagers are not yet adults and do not always act in the manner a reasonable adult would.
Too bad the adult TM encountered that night did not act in a manner I feel a reasonable adult would.