That seems bizarre. I thought Murder 1 required malice aforethought. Even if the jury found Erslund lacked justification to shoot, how can they find malice aforethought when poor little Antwan (who was just getting his life turned around) showed up unexpectedly at Erslund's place to rob him?
I agree, while I think the man is guilty, Murder 1 seems absurd to me.....
Malice aforethought only takes one second. If you shoot someone with the intention of killing them that counts. From the video it looks like the entire time after he re-entered the pharmacy his only intention was to kill the robber. That is more than enough time to establish malice aforethought.