Houston is shattered by a shock wave of unbelievably vicious sex killings. And this time the pattern is unique--way out of line with traditional violent-crime psychology. In Detective Carmen Palma's experience, a psychopath always chooses anonymous targets. But the Houston victims know and trust their killer: They meet willingly in hotel rooms, even in their homes. They don't fight when the leather cuffs are fastened to their wrists and ankles. They...