Sacred and Profane

Blurb

Sacred and Profane is a 1987 novel by Faye Kellerman. It is second in the Peter Decker/Rina Lazarus series. A Fawcett Crest Book published by Ballantine Books.
Timeline: About six months after The Ritual Bath, starts Christmas Eve, Decker is 39.
Place: Los Angeles and Yeshiva Ohavei Torah, Foothill Division LAPD.