Double Cross - James Patterson

Just when Alex's life is calming down, he is drawn back into the game to confront a criminal mastermind like no other. The elaborate murders that have stunned Washington, DC, are the wildest that Alex and his new girlfriend, Detective Brianna Stone, have ever seen. This maniac adores an audience, and stages his killings as spectacles in public settings. Alex is pursuing a genius of terror who has the whole city on edge as it waits for his next move. And the killer loves the attention, no doubt -- he even sets up his own website and live video feed to trumpet his madness.