Justin, In Cold Blood was maybe the first book that kind of scared me, because it was true and I had a hard time with the fact that there were real monsters in the world I'm old enough to remember the crime.
I just started reading "Light of the World" by James Lee Burke, Iberia parish detective Dave Robicheaux and P.I. Clete Purcell are vacationing in Montana and the usual violent story unfolds. I really like stories where the bad guys never make it to trial,