Adam Lankford, Ph.D., is a professor of criminology and criminal justice at The University of Alabama. He is the author of two books and many peer-reviewed journal articles on various types of criminal behaviour, including mass murder, mass shootings, and terrorism. His research has examined perpetrators’ psychological tendencies, mental health problems, suicidal motives, fame-seeking tactics, copycat behaviour, and weapons acquisition-along with the strategies that might be used to prevent their attacks.