Devious - New Orleans series, book 7

NOWHERE IS SACRED. NOWHERE IS SAFE. Fans of Karen Rose and Nora Roberts will love Lisa Jackson's chilling new novel about a killer striking in the holiest of places. Sister Camille, a troubled novice, is found garrotted in St Marguerite's cathedral. Bentz and Montoya discover this case is close to home - Montoya knew Camille previously as his brother's girlfriend and they even know the prime suspect: the priest Frank O'Toole, father of Camille's unborn child.
When more nuns are brutally slaughtered by someone who seems to know their darkest secrets, Bentz is sure Father O'Toole is their man. But the truth is even more twisted and terrifying than they first imagined ...