John Verdon is the master of the puzzle of a crime. The books in the series focus on the puzzle pieces and the skill of the main character in combining his intuition with the step by step process of peeling back the layers of the crime.

This is a particularly suspenseful book. If you like Michael Connelly Harry Bosch books I think you'll like the John Verdon series. Best to start with the first one "Think of a Number", but not essential.