The American Association for the Advancement of Science and the Intenational Center for Human Rights Research has compiled a database of human rights violations in Guatemala during the period of 1960-1996. During this timeframe, Guatemala was engaged in a violent civil war that eventually turned into a genocide. Using this data as a case study, the Center for International and Security Studies (CISSM) at the University of Maryland is seeking to construct agent-based models of civil conflict and violence. Different types of conflict exhibit different statistical patterns. We are working to construct agents, using both the "Brookings Model" and SOMA rules, that are accurate and robust enough to allow the user to distinguish between episodes of civil violence, i.e. between genocide and a rebellion.