Cross Fire by Jame Patterson
Alex Cross encounters his most explosive case ever as a D. C. assassin picks off politicians . . . and his most deadly enemy is waiting to kill everyone he loves.
Detective Alex Cross and Bree's wedding plans are put on hold when Alex is called to the scene of the perfectly executed assassination of two of Washington D.C.'s most corrupt: a dirty congressmen and an underhanded lobbyist. Next, the elusive gunman begins picking off other crooked politicians, sparking a blaze of theories: is the marksman a hero or a vigilante?
The case explodes, and the FBI assigns agent Max Siegel to the investigation. As Alex and Siegel battle over jurisdiction, the murders continue-and they won't stop until Cross and his family are gone for good. With a supercharged blend of action, deception, and suspense, Cross Fire is James Patterson's most visceral and exciting Alex Cross novel ever.