Erica Spindler: Dead Run [2006] paperback

Evil lives in Paradise...A panicked message on her answering machine is the last Liz Ames hears from her sister Rachel. Determined to find her, Liz heads to Rachel's home in Key West. Within hours of her arrival a man jumps to his death. Then a teenage girl is found murdered. The ritualistic style of the killing is hauntingly similar to that used by the notorious "New Testament" serial killer-now on death row. Could these deaths be related to Rachel's disappearance? Is a copycat killer at work? And why do the police refuse to help? As Liz peels away the layers of deception, she finds this island paradise harbours an unspeakable evil...