Presently there is much discussion over the role of mental illness in violent crime. Unfortunately, there is more heat than light on the subject. Yes, many perpetrators of such do have emotional and psychological issues. However, there are many varieties of such, as there is with physical medical dysfunction. This post is focusing on what is arguably the most harmful of mental dysfunctions: psychopathy. Click on the link below for a clear picture of when it usually begins in such a person's life and how hard it is to treat. If you are a believer in counter-causal free will, this will at least give you pause.