I have nothing to add other than Memphis sure sounds like a rough town. I love the place from my visits, (best food on the planet), but holy moly. I know that some people from far away think that L.A. is one big shooting range but I've met nothing but nice people buying and selling on CL, knock on wood.
Do you think that you would have been able to shoot the guy if you had a gun? Not trying to argue, I just always wonder the same thing. I always figure that you'd have to see the situation unfolding in real time.