Even if you only watch one hour of news a week you have probably been flooded with reports on mass murders, serial killers, and other dangerous individuals who threaten us in random ways each day. During this meetup we will be exploring some of the psychology and pathologies of these individuals (if you know specifics please bring them along), with an attempt to try and understand why they do the things they do. In addition we will discuss the overlap with mental health issues and how policies, funding, and better treatment can help us cope with these individuals, whether its through treatment and prevention, identification or even prosecution. This discussion will be informal and we hope to have a better understanding of what factors may contribute to these seemingly senseless crimes. We welcome additional angles and topics others are interested in discussing as well.