Career of Evil by Robert Galbraith
Career of Evil is good, let me say that first off. The mystery, even with its limited suspect pool is engrossing and the episodes from the killer's point of view are disturbing. The characters are well-drawn and I am invested in their personal stories, in addition to the crime-solving aspect, thanks to having read the previous two in the series. And I do think this is a series where it helps to read them in order.
But I didn't particularly enjoy Career of Evil. If it wasn't a series I like, with people, fictional though they might be, who I care about it, I probably wouldn't have read it, or at least not finished it.
First, I just don't like serial killer books. I read a lot of mysteries, but I avoid that particular trope. I think it has something to do with motive. Revenge, anger, greed, jealousy, need to protect oneself or one's secrets, are all understandable, their normal feelings taken to extreme....