One of the treats of "Furious Hours" is that its author is curious about everything. Not just one murder trial, not just Harper Lee. So you get digressions about (and these are just a few examples): -The Scottsboro Boys. African-American boys wrongly accused of a horrific crime. These kids were forced through trial after trial, and repeatedly called guilty by all-white juries. The story dragged on for years. -The Tuskegee Syphilis Experiment. Another case that went on for many years, whereby black people were injected with syphilis and allowed to suffer--and were watched by heartless doctors. -Marie Laveau. In a creepy digression about voodoo and "the Seven Sisters," Casey Cep mentions Marie Laveau, the woman who worked as a "conjurer" in Louisiana. Commenting on the weirdness of American myth-making, Cep wryly notes that "Laveau seems to have been born before the American Revolution, and to have lived into the twentieth century." -Philip...