"If a person behaves unlovingly, then that means that, regardless if their negativity—anger or whatever—their behavior was derived from fear and doesn’t actually exist. They’re hallucinating. You forgive them, then, because there’s nothing to forgive." — Maryanne Williamson
Him being on the scene with a weapon was a bad choice. Him getting separated from his group was a bad choice. The rest was self defence and the thugs he shot were attacking him.