The Mocking Program — Alan Dean Foster

Inspector Angel Cardenas has seen murdered corpses like George Anderson's, but never a case like this. The victim's ID doesn't match his DNA, Anderson's wife and preteen daughter, Katla, are missing, their home has been turned into a time bomb--and mobs from three continents are all hunting Katla. Relying on his training as a nearly telepathic intuit, Cardenas embarks on a search for clues that leads him from the Strip's sex parlors and stimstick clubs, where kids are deadly and music can kill, to an undersea hideout where computer crimes are committed by criminal computers. Yet the closer Cardenas gets to the girl, the closer assassins are getting to them both...