I really enjoyed the first person perspective that was not from the “first person”. The author was not the killer, but wrote the book as if he is the killer. He does switch back and forth between first and third and that can be a little confusing at times, but for the most part, it is easy to follow. The book seems well researched and very in depth about a psychotic killer who has all the traits of a classic narcissistic serial killer and he is good at it for many years. A good read if you like true crime.