Bell hadn’t read Dark Dreams before, and it was a revelation. Hazelwood wrote of the specific deviations of sexually sadistic criminals, and Keyes had nearly all of them: No criminal record prior to arrest. A seemingly happy domestic life. Compulsive driving—this stood out to Bell. It had seemed so specific to Keyes, yet Hazelwood explained that this was a shared tendency among psychopaths, feeding an overarching need for control, freedom, and constant visual stimulation to counter the boredom they so often feel.