He was sooooo skeerd that he confronted this person that was “following” him. TM wasn’t being followed - all he had to do was go 70 yards and not return if he was so scared.
TM chose to return instead, thus sealing his fate. I have no empathy for a street thug that told GZ he was going to die that night as he was pounding his head into the concrete.
Nobody gives any thought or speaks any words to the effect of TM’s state of mind being either confrontational or downright vigilantist in nature (if he thought GZ was a gay stalker per Jenteal).
There is no amount of logic that will ever convince people like Melvina that Martin attacked.