Columbine by Dave Cullen
I first heard about this book on Metafilter when Susan Klebold, mother of one of the killers, had an article in O Magazine. Before that I had never been interested in the shooting. Not beyond the evils of rubber-necking at some one else’s tragedy. But the discussion there seemed to suggest that this was a well-thought out and reasoned look at the community surrounding the school, as well as the killers themselves. And the author, Cullen, believed that the popular myths about the shootings shouldn’t stand unchallenged.