It should be execution for armed robbery though. If you stick a gun in someones face and rob them, then you deserve to die imo. You just threatened the life of someone, now someone can take yours.
If the clerk who was getting robbed pulled their own gun and shot the robber dead on the spot, nobody would blink an eye. But if its later we should feel bad for them? Ummm, no.
The point is, that if indeed it is him robbing the store, I am going to give the benefit of the doubt to the cop in this situation because the credibility of the thug is now gone, and nobody should feel sorry for him. The community especially shouldnt be marching up and down the streets screaming injustice, and putting cops life in danger.
Who really is the side rushing to judgement? The cop, or the community screaming injustice before they know what happened? The cop maybe, the community most certainly.