Predator by Patricia Cornwell

Dr. Kay Scarpetta, now freelancing with the National Forensic Academy in Florida, takes charge of a case that stretches from steamy Florida to snowbound Boston; one that at first appears as unnerving as any she has ever faced. The teasing psychological clues lead Scarpetta and her team—Pete Marino, Benton Wesley, and Lucy Farinelli—to suspect that they are hunting someone with a cunning and malevolent mind whose secrets have kept them in the shadows, until now. Predator is proof once again that Patricia Cornwell has few peers with her extraordinary ability to entertain and enthrall.