Not a bad book at all! In today's social climate, a true crime book that touches on racism and police brutality/reform feels pretty relevant. I hadn't heard of Petrosino or the Black Hand before so this was a really interesting read. My only complaint is that side characters were only introduced or mentioned when they were relevant to Petrosino's life and I would have enjoyed a more steady timeline with them, rather than just when their lives touched on the detective's.