Zero Day by David Baldacci (2011, Hardcover) Book

Combat veteran and U. S. Army investigator John Puller is on the hunt for justice with the help of a homicide detective--but as they face deceptions and dead ends, a powerful force threatens to stop them forever in this #1 New York Times bestselling thriller. John Puller is a combat veteran and the best military investigator in the U.S. Army's Criminal Investigative Division. His father was an Army fighting legend, and his brother is serving a life sentence for treason in a federal military prison. Puller has an indomitable spirit and an unstoppable drive to find the truth. Now, Puller is called out on a case in a remote, rural area in West Virginia coal country far from any military outpost. Someone has stumbled onto a brutal crime scene, a family slaughtered. The local homicide detective, a headstrong woman with personal demons of her own, joins forces with Puller in the investigation.