All That Is Wicked

I liked the way his life was approached - the horrible deeds with the (ultimately useless) linguistics work. Focusing on the linguistics and his supposed genius first, then the murders and robberies, would have seemed ridiculous or biased towards the “oh but he's so smart, he should be free to keep living and working” side. The information on phrenology and how it was discredited, and the start of trying to understand and identify psychopaths, was really interesting.