Triple Cross by James Patterson

Detective Alex Cross is on the trail of a serial killer known as the Family Man, who targets entire families and leaves almost no evidence behind. As the investigation intensifies, Cross and his partner John Sampson team up with a bestselling true-crime author who believes he can identify patterns others have missed.

But the killer is always one step ahead, and the investigation becomes deeply personal when Cross's own family is threatened.

Triple Cross is an Alex Cross thriller by James Patterson, featuring a chilling investigation, a ruthless killer and a race to protect the people Cross loves most.