I don't think any reasonable person could argue that stricter gun laws 'can' make a difference, whether they would or not is another matter. I would like to think that a mentally ill person would, at the very least, find it difficult to obtain firearms and/or ammunition. It is a difficult situation to be in, as there will always be a black market where anyone (with money) can purchase whatever they want, but surely it makes sense to make it as hard as possible for them to do so. At least it would ensure that anyone who wanted a gun has to jump through a few hoops to get one. Anyway, it's a tough argument and I don't see it finishing any time soon - plus I agree with points on both sides, getting scratches on my balls from sitting on the fence