One thing the article didn't mention which I'm curious about is the role of urban geography on shooting lethality.<p>For example, Chicago's lethality rate is almost half of New Orleans (16.3% vs 27.9%). Having been to both cities, I've noticed that Chicago has remarkably long city blocks (1/8th mile per block iirc), with wide sidewalks and numerous alleyways, and a very straight and regular grid in most of the South and West side sprawl. New Orleans trends towards the opposite (though it's also much more varied than Chicago), with narrow sidewalks, lots of narrow one way streets, and irregular grid layouts. It's easy to see how New Orlean's geography could favor the attacker and lead to higher lethality. Would be interesting to see these geographic features quantified in some way.