At the start of bestseller Gross’s twisty second thriller to feature Ty Hauck (after The Dark Tide
), the Greenwich, Conn., police detective gets caught in a shooting at a local service station. A young man wearing a red bandana leans out a car window and fires: he nicks Hauck; kills David Sanger, a federal prosecutor; and wounds others. Was Hauck the target? Was it a hate crime directed at the Pakistani who owned the gas station? Or was Sanger the target? As Hauck investigates, potential leads evaporate or end in blind alleys. When the triggerman is shot dead in the Dominican Republic, the Greenwich police chief suggests Hauck should consider the case closed. Hauck decides to continue, despite increasing pressure to desist from many quarters, including the FBI and the owners of the Pequot Woods Resort and Casino. Hauck does “look twice,” with results that will change his life radically, though some readers may doubt the wisdom of the choice he makes at the end. 10-city author tour. (Mar.)