He never shot the black thug with the gun, he shot the unarmed one in the head which made sense, but then later he came back into the store, got another pistol and then shot the unconscious, unarmed robber 5 times is what the police say.
You always believe what the DA says? Or what the police say?
If I recall, they got it wrong in the Duke lacrosse case.
The unarmed thug was in the wrong place at the wrong time. He depended on the armed thug to do the dirty work and he got what he deserved. Never bring a knife to a gunfight or in this case, never go unarmed to a gunfight. Dead lasts a long time either way.