Well, at least you can run away from a knife. And tbh, knives or any kind of weapon should be illegal to have on you outside of your own house or property.
At least that way, when someone does have a weapon on them and they kill someone with it, they can be sure as hell they won't get away with it unless they never get caught.
Right now, it's anyone's guess if Zimmerman didn't just plan the whole thing out and staged every single step to get away with shooting someone to death. The fact this is even possible makes it ridiculous.
I'm very much against weapons of any kind and obviously guns get all of my attention. I just don't understand why civilians should be able to walk around with weapons so lethal, that it only takes the push of a button to kill someone. If I were to approve of gun use in any way, it would be when someone is fending off more than 3 people.