Listen to his 911 tape. His words “a———, they always get away.” Either “f——— punks” or “f——— coons.” His voice is shaking at some points. Those are objective FACTS.
Any reasonable person will infer frustration and anger, agitation.
I have, and I don't hear what you do. “The a holes always get away”, yes the trespassers or f ing punks always do get away. “Coon”??? No way is that what he said. It is unintelligible, I don't hear “coon”.
In ANY case, you do not know what is in someones mind. My hearing of the tape does not lead me where your hearing does.
Even IF you were correct (you are not) IT DOESN'T MATTER. Following, chasing, confronting, all legal. The assault by the punk Trayvon, is what was illegal and lead to his death.