Again, dude with the gun incited the violence by his actions in the crowd which were well documented throughout the afternoon...

Physically assaulting numerous females.

Waving his handgun at people

Pointing mace or pepper spray at people...

This is instigating violence.... you dont poke a bear and be surprised when it bites you. He got bit while looking for trouble, its no longer self defense.

If he was minding his business and got randomly boinked by skateboard, shoot away...

Hes donezo..