Jacobson and King, University of Illinois at Urbana-Champaign (IMAGE)

University of Illinois at Urbana-Champaign, News Bureau

Jacobson and King, University of Illinois at Urbana-Champaign

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Illinois researchers Sheldon H. Jacobson and Douglas M. King found that mass-killing events in the United States have occurred at a steady rate for more than a decade, yet the method and timing are random.

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Photo by L. Brian Stauffer

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