That's the abstract from an important new article by Omar McDoom in the journal Political Geography. You can read the whole thing for free here. One intriguing practical implication for outsiders responding to incipient genocides and other episodes of mass killing is that peacekeeping forces sent to stanch fighting might have greater net effect if deployed quickly to lower-risk areas. Per McDoom,
As McDoom allows, we'll need similar studies of other cases to learn whether or not these patterns hold outside of Rwanda. Still, it's always encouraging to see such careful empirical analysis with an eye toward prediction and, through it, prevention and mitigation. Our early-warning project focuses on anticipating the onset of mass-killing episodes, rather than their dynamics across time and space once they begin. Eventually, though, we hope to expand our work in this direction as resources, data, and interest allow.