1. Introduction 2. Who are the Lone-Actor Terrorists? 3. The Behavioural Underpinnings of Lone-Actor Terrorism 4. Why Go It Alone? 5. The Role of the Internet 6. Mental Illness and Lone-Actor Terrorism 7. Comparing Lone-Actor Terrorists 8. A Situational Crime Prevention Approach 9. Lone Actor Terrorist Dilemmas
Paul Gill is Lecturer, Department of Security and Crime Science, University College London, and has a PhD in Political Science from University College Dublin.