Who is Ray Mora from The Concrete Blonde and what is their importance?

A vice cop, Ray was on the original Dollmaker's task force with Harry Bosch. He is about the same size as Harry, with straight brown hair that he keeps trimmed short. He has brown eyes and a deep bronze skin tone with no facial hair. Casual in appearance, Ray dressed most often in jeans and an open shirt with cowboy boots. He wears a gold medallion with an imprint of a dove with its wings open, symbolizing the Holy Spirit. A religious statue of the Infant of Prague sits on his desk, but he has a way of mingling his religion with the gutter talk that comes from being a vice cop.