Let me just say that I like the book, but the kindle version I have read has several flaws in lining paragraphs which in turn made my reading hell sometimes.
However, this technical flaw cannot divert my attention from the main reason why evaluate this book with 3 stars only: although a good book overall, with compelling story I did not feel glued to it. The last twist was really a nice and well thought twist, but these kind of books should give me the sensation that I am also part of the investigation. I had it with other books, even if way outside the right track to discover the assassin.
Nevertheless, still recommend this book, although please be aware of some technical flaws for peoples reading on kindle.