15 The next morning, Rebecca and Sutter decided to check out the relationship between Meaghan Bishop and Supervisor Mark O'Brien. The two detectives drove to O'Brien's stately home in a quiet, wealthy neighborhood edging the Presidio. Rebecca rang the doorbell, and a woman answered. “Is Mr. O'Brien in?” Rebecca asked as she and Sutter identified themselves. The woman was a maid, and she led them into the living room. She lit the fireplace, and they waited beside it until O'Brien entered the room. He could have been a political pin-up boy with his gray hair sporting a long comb-over, sprayed and shellacked to stay in place, plus enough wrinkle-erasing Botox to render his face as smooth and shiny as his hair. “Inspectors,” he said by way of greeting them both as he shook their hands wi