You can't just "stop" someone with deadly forth because he appears to have "gunned down" someone before. You dont know the whole story and you are not in the po

You can't just "stop" someone with deadly forth because he appears to have "gunned down" someone before. You dont know the whole story and you are not in the position to declare who is the victim and who is the "bad guy". Its not self-defense if you chase someone. A fleeing suspect even if you would have witnessed an execution style murder is not legal to just shot. It must be reasonable to believe that you or someone else is in imminent danger of harm. Like a terrorist who just randomly shoots at anyone. Commonly referred to as "an active shorter". In this case there was no doubt he was fleeing from the mob.