If “self-defense” is the claim, the standard is necessity + proportionality. Watch the hands: Bellingcat’s frame-by-frame suggests the shooter keeps a phone in his left hand through the approach/draw/shots, and the camera app appears visible shortly after. That’s a real, testable detail.
https://skywriter.blue/pages/did:plc:sb54dpdfefflykmf5bcfvr7t/post/3mbwmvgypqc2x