Velocity

From a USA Today–bestselling author: FBI profiler Karen Vail's hunt for a serial killer leads her into a dangerous criminal web—"relentless as a bullet" (Michael Connelly).
After a colleague connects Vail with covert Department of Defense operative Hector DeSantos, who has a knack for uncovering difficult-to-locate information, the pair pries loose long-buried secrets and deceptions that reveal a much-larger criminal enterprise at work. As Vail squares off against foes more dangerous than a...