Death of a DJ / Fruitcake / Cheat the Devil
Jane Rubino

Book 1: Death of a DJ: Cat Austen, a cop's widow with six overly-protective older brothers (five cops and one priest) takes a freelance assignment to profile a pair of shock jocks. When one of them is gunned down, Cat teams with homicide cop, Lt Victor Cardenas to track down the killer.
Book 2: Fruitcake: The discovery of a corpse donned in a Santa suit draws Cat Austen into a conspiracy involving an Atlantic City casino mogul and his fashion designer wife.
Book 3: Cheat the Devil: A young woman's death interrupts Cat's getaway with Victor when she is discovered to be the most recent of several murder victims linked to an Atlantic City parish and its priest, Cat's brother.