When Cate Kinkaid receives a frantic call about a triple homicide, she drives to the scene against her better judgment--aren't triple homicides more up the police department's alley?--only to find that the victims are not quite who she expects. Now she has a new rule to add to those she's learned in her short stint as an assistant private investigator: always find out if the victims actually have human DNA. Because these three do not.But who would...