The Desperate Identities of Dangerous Men: Understanding Mass Attackers by Understanding Personality Disorders

Program Description: How do we make sense of mass attackers? All too often we focus on things that happened to them, not who they were as people. School shooters were bullied, workplace attackers were terminated, and so on. Yet, the overwhelming majority of people who experience such stressors do not become killers. Such explanations fail to consider who the people were that these things happened to. In other words, personality is often ignored as a factor in violence.

Though there is no profile of a mass attacker, there are common personality traits that occur in a wide range of perpetrators. One commonality is that they are psychologically fragile people with profound vulnerabilities. How these vulnerabilities manifest, however, varies dramatically. This presentation utilizes research on personality disorders to illuminate common traits among mass killers and the multiple pathways to extreme violence.

Program Learning Objectives: At the end of this program, participants will be able to...
1. Explain the connection between psychological fragility and violent behavior
2. Describe two personality processes which can lead to people becoming more prone to violence
3. List three personality disorders common in violent perpetrators

Presenter: Dr. Peter Langman is a psychologist whose research on school shooters has received international recognition. His book, Why Kids Kill: Inside the Minds of School Shooters, was translated into German, Dutch, Finnish, Russian, and Serbian. His work has been cited in congressional testimony on Capitol Hill and he has been interviewed over 600 times by media outlets in 35 countries. After the Sandy Hook attack, the CEO of the American Psychological Association presented Dr. Langman’s recommendations on school safety to President Obama. He has presented at both the FBI Headquarters in Washington, DC, and the FBI National Academy in Quantico. He has been an invited speaker at the National Counterterrorism Center and was hired by Homeland Security to train professionals in school safety. He has trained thousands of professionals in education, law enforcement, and mental health on the psychology of violent offenders. He maintains the largest online collection of materials relating to school shooters at schoolshooters.info, including over 600 documents totaling 70,000 pages. His book, School Shooters: Understanding High School, College, and Adult Perpetrators was published in 2015. From 2018 to 2023 , Dr. Langman was a researcher with the National Threat Assessment Center of the United States Secret Service. His latest book is Warning Signs: Identifying School Shooters Before They Strike.