Memory Man by David Baldacci (2015) Grand Central Publishing

This has the marks of a mystery in terms of the killer is seen up-front in an early chapter of the book surrounding the explanation of the main character, Amos Decker, explaining his mental condition.  And in the repeated review of what is known so far leading to clues that are doled-out throughout the book – some of which the great detective, Amos, ends-up explaining to others or is revealed in the next chapter.  It is a thriller in that the pace is relentless and the stakes continue to increase the pressure; as more and more people are killed or threatened with their murder.