Hunting Eichmann (Neal Bascomb, Houghton Mifflin Harcourt, 2009, 400 pages)
Leadership: In Turbulent Times (Doris Kearns Goodwin, Simon & Schuster, 2018, 496 pages)

The Murder of King Tut: The Plot to Kill the Child King - A Nonfiction Thriller (James Patterson, Little Brown, 2009, 416 pages)

Not quite sure I'd describe this as "nonfiction" or a "thriller."   Interesting, but not particularly compelling.  I did enjoy the treatment of Howard Carter's search for Tut's tomb, which seems more reasonably based on the historical record and fact than Tut's alleged murder.