Mistakes were made on both sides.

Travon could have said, "I'm visiting my dad in condo A-303 (whatever condo number it was)," and it would have been over. Period. He could have not started to assualt Zimmerman, and it would probably not have escalated from there.

Zimmerman could have stayed in his car, or just followed Travon and not closed in on him.

Zimmerman had every right to follow Travon, as there had been burglaries in the recent past. Travon apparently had the right to be there. Travon didn't have the right to start assaulting. People made life changing choices that day, and they set off a series of unforeseen consequences.