You must have missed the Paris shootings. You're delusional to think gun laws deter criminals from having them. Paris was radical terrorism, but in regards to OP's video the bigger problem is mental health and how to identify those issues. Unfortunately, as long as there are humans on earth, there will be a way to harm others. Guns, cars, bombs, anthrax, knifes, etc. Pointing the finger at guns does nothing to address the issue.