I love mysteries/thrillers, fantasy and science fiction. It's pretty much all I read. My reviews will be in English and Spanish, even though they may only appear in one language at first.
The mystery was good, but there was virtually no information about the killer. We barely even know who he is. Just his name and his profession, but nothing else. Given the nature of the crimes, it is possible to guess the main reason, but it remains just a guess.