The standard saying we use at the local range here is that the gun doesn't care what's on the other end--paper or person. So what's the difference here? It's a person's own mind-set that will effect them whether or not a weapon was involved in the killing of someone. If I squeeze the trigger and someone is on the recieving end, the weapon used isn't really even a part of the equasion--it's just a mechanical device functioning exactly as it was intended, what's on the other end makes no difference. The difference is in the person, not the weapon.