I am a political and historical sociologist who studies individual decision-making about genocide. I combine diverse social scientific theories and methods from sociology, political science, history, and the various cognitive sciences to examine how people make choices about violence, including whether or not to participate in violence, when and why, and how, as a war is ongoing. A particular focus of my current work concerns dehumanization, its causes and consequences. Finally, I examine the consequences of violence at the individual and broader social-structural levels of analysis and how different communities strive to overcome violent pasts.