Absolutely! And you made another good point about the cops having to have seen that the call came from somewhere outside of Kansas (or Missouri- KC covers both). They're just trying to shift blame away from the cop... there's no excuse to shoot an unarmed man. Worst case scenario... the guy was reaching for a gun- the cop had his trained on the guy already. He had plenty of time to discern whether or not the guy was coming out with a weapon before firing.
I've shot people and believe me had that cop hit him once AFTER seeing a gun, it would have stopped him.