"What's the lab going to do with them?"

"Test for blood spatter. Traces of gasoline."

"This is ridiculous. Go ahead and look for that."

"We intend to, ma'am. We intend to."

The two daughters started crying.

When they had finished inside and announced their intention to inspect the car, the family broke up, the kids chattering nervously, upset about the weirdness of having their house searched. Everyone then went their various ways-the husband and wife uncommunicative, formally distant with one another, Cuneo noticed.

Will drank coffee and read the morning paper at the kitchen table, and Catherine announced that she would like to go outside with the inspectors. She couldn't imagine what they might be looking for. Now Cuneo was straightening up, and he turned to her. "Smells like you've got a gas leak. Did you know about that?"

She came closer, careful to keep her distance, leaned over the trunk and sniffed. "I do smell it. I ought to take it in for service."

"Have you noticed that smell before?" he asked.

"Not really," she said. "I don't use the trunk very often."

But Russell was feeling the rug on the trunk's floor. "This isn't a leak, Dan. Gas got spilled in here."

"No! That's not…" Then Catherine stopped herself. "Oh," she said. Her hand went to her mouth.

"What?" Cuneo was standing straight up in front of her, inside her comfort zone and knowing it, squinting in the sun. "Oh, what?" he repeated.

"That was a couple of weeks ago," she said.

"What was?" Cuneo's features were somehow expectant. On both hands, his fingers opened and closed.

Russell stood next to his ex-partner, paying attention to this development. Catherine Hanover, perhaps seeking some kind of support, directed her words over Cuneo's shoulder to him. "It was a few weeks ago," she said, beginning again.

"A few or a couple?" Cuneo asked.

"What?"

"First time you said 'a couple.' Then you said 'a few.'

Which is it?"

"I don't know. I could probably remember."

"Take your time," Russell said. He was a black man with a pleasant face, and he had put on a patient expression. "We've got all day if you want."

Catherine looked from one of them to the other. "I should probably call a lawyer, shouldn't I?"

"If you think you need one," Cuneo said.

"That's your absolute right," Russell agreed.

"Are you two thinking about arresting me? For Paul's murder? I didn't have anything to do with that. I don't know anything about it at all, except that I saw him that day. That's all."

"We're just executing a search warrant, ma'am," Russell said. "If you were under arrest, we'd be reading you your rights."

"So I'm not?"

"No, ma'am."

"But," Cuneo put in, "you were starting to tell us about the gas smell in your car, two or maybe more weeks ago."

"Let me think," Catherine said. "I'm sure I can remember. Okay, it was… today's Saturday… it was the week before last. Monday, I think."

"So more like ten days?" Russell, being helpful, wanted to nail down the day.

"Something like that. I was going to pick up Polly for something after school, I don't remember exactly what it was now-her orthodontist appointment maybe. And I passed a car parked off the road-it was in the Presidio. Anyway, there was a young woman, a girl really, standing beside it, kind of looking like she hoped someone would help her, but maybe not wanting to actually flag somebody over. So I stopped and asked if she was all right, and she said she was out of gas."

Catherine looked into Russell's face, then Cuneo's. Sighing, she went on. "She had one of those containers in her trunk, you know, so we got in my car and I took her to a gas station, where we filled it up and put it in my trunk, and then I took her back to her car, but when we got there, the container had fallen over and leaked out a little."

"A little," Cuneo said. "It seemed like a little."

He leaned over and ran his hand along the rug. As Russell had, he smelled his hand. Russell, meanwhile, moved up a step. "What kind of car was it?" he asked.

"Whose? Oh, hers? White."

Russell said, "That's the color, ma'am, not the kind. What kind of car was it?"

Catherine closed her eyes, crinkled up her face, came back to him. "I think some kind of SUV. I'm pretty sure."

"Any memory of the license plate?"

"No. I don't know if I ever looked at it."

"Did you get the young woman's name? First name, even?"

"No. We just…" Her expression had grown helpless. She shook her head. "No."

Russell nodded. "You're going to go with that story?"

"It's not a story," she said. "That's what happened." Cuneo had removed a Swiss Army knife from his pocket and was back inside the trunk, cutting fibers from the rug that he then placed in a small Ziploc bag. "Well, okay, then," he said, turning to Russell. "I think we're through here for now."

The law firm of Arron Hanover Pells had a recorded message that provided a number clients could call if they had a weekend emergency. When Glitsky called that number, he reached one of the associates, who agreed to call Paul Hanover's secretary and ask her to call him back. Glitsky pulled up to a mini-mart just off Columbus in North Beach, double-parked and got a cup of hot water with a tea bag, then went back to his car to wait. The tea hadn't yet cooled enough for him to sip it when his cell phone rang. "Glitsky."

"Hello? Is this the police?"

"Yes it is. This is Deputy Chief Glitsky. Who am I speaking with?"

"Lori Cho. Paul Hanover's secretary."

"Thanks for getting back to me so fast."

"That's all right. I wasn't doing anything anyway except staring at his files. I can't get used to the idea that he's not coming back in."

"So you're at your office now? Would you mind if I came by for a few minutes?"

"If you'd like. We're in the Bank of America building, twentieth floor. There's a guard downstairs who's got to let you up. I'll tell him I'm expecting you. Could you give me your name again?"

Lori Cho met him at the elevators. She appeared to be in her midthirties, small-boned, fragile-looking, close to anorexic, with a haunted, weary look about her eyes. Or perhaps it was simply fatigue and sorrow over the loss of her boss. Here at the office on Saturday she was dressed for work in a no-nonsense black skirt with matching sweater, tennis shoes and white socks. Her hair softened the general gaunt impression somehow-shoulder-length, thick and shining black, it might still have been damp.

Glitsky followed her in silence down a carpeted hallway, through a set of wide double doors, then across an ornate lobby and into a large corner office. Hanover's panoramic view was mostly to the east, down over the rooftops of lesser high-rises to the Bay, across the bridge to Yerba Buena and Treasure Island, with Berkeley and Richmond off in the distance.

"You can just sit anywhere," Cho said. She seated herself behind the highly polished dark-wood desk, swallowed up by the black leather swivel chair that must have been Hanover's. Flattened sheets of cardboard, which Glitsky realized were unassembled boxes, were stacked by the file cabinets against one of the internal walls. The other wall featured framed photographs of Hanover with a couple of dozen politicians and celebrities, among them several San Francisco mayors, including Kathy West, and three of California's governors, one of them Arnold. At a quick glance, here was Paul Hanover, shaking hands with both Bill Clinton and George Bush; on a boat somewhere with Larry Ellison, in a Giants uniform with Willie Mays. Evidently he'd been to the wedding of Michael Douglas and Catherine Zeta-Jones.