He was triggered by the obvious white supremacy being flaunted by the girl. He will get therapy and maybe reparations.
She will get a warning and will probably be told that she should wear a burqa, become muslim breeding stock, and not leave the home unless accompanied by an adult man in the family.
Yet more black on white violence. Systemic?
Given the neighborhood she was almost certainly a “White Hispanic”. That demographic is teaching the other minorities to dislike them.