"What kind of insane person would hold Tommy accountable for my actions, any mistakes I may have made, even if he held me responsible for his financial misfortunes?"

"We will return to that, sir," Savich said. "Bear with us."

Avilla Cronin sat forward and said, her voice filled with the authority of someone who expects to be listened to, "No, answer him. My husband is correct. Tommy was too young to have such crazed enemies. The killer has made it obvious, has he not? A malcontent or a radical or an anarchist murdered Tommy, spurred on by all the media frenzy about those people in Zuccotti Park, or perhaps because he lost everything in the banking crisis. He wanted to make someone pay, and he selected Palmer, the most important and well-known face of banking in the world. He wanted to show the world he was getting revenge. Will he try to murder us next?"

Avilla was seventy-six years old, a year younger than her husband, the daughter of Boston shipping wealth and for nearly fifty years the wife of the powerful Palmer Cronin. In her early years she'd been outspoken, involved in the civil rights protests, and spent a few nights in jail. Later, she'd been managing director of MIS-Make It Stop-a charity organization that awarded antipoverty grants for economic development in the third world.

"We don't know what he will try to do," Savich said. "Until we make an arrest, we will do our best to protect you."

She nodded. "Yes, Director Mueller said we would have an FBI agent to guard us. For that, at least, we are grateful." Her strong face collapsed, but she didn't cry, she sat there frozen, her hand now clutching her husband's.

"What I find difficult to understand," Mr. Cronin said, "is why anyone would wait so many years after I resigned my position as the Federal Reserve chairman?"

Savich nodded in agreement. "Mr. Cronin, your staff has forwarded to us the file of threatening letters you've received in the past two years. If need be, we will look back all the way to 2008. Have you personally received any threats, sir?"

"Nothing in my personal mail at the house, or in my private email. But of course no one would be able to get my private email."

"Do you know if Tommy received any such threats?" Savich asked.

"No, not that he mentioned. You know, Agent Savich, I have never paid too much attention to protests in the street or to random threatening letters. It would seem to me that you in the FBI always know more about such people, and such matters, than I do."

"Indeed we do, Mr. Cronin," Savich said. "And so that would bring us back to information you can help us with, more personal matters."

Mrs. Cronin said in a deep, strong voice, "Very well, Agent Savich, ask your questions."

"Let's begin with Tommy," Sherlock said. "Do either of you know where Tommy was Friday night or what he would usually be doing on Friday nights?"

"Tommy was our beloved grandchild, Agent Sherlock," Mrs. Cronin said, "but since he got busy at college we saw him far less than we would have liked. You will have to ask his friends at school."

"Agents are interviewing his friends at Magdalene right now, Mrs. Cronin. Did you meet any of Tommy's college friends?"

Mr. Cronin said, "Tommy has brought a number of college friends here upon occasion, as well as his friends from childhood. I remember when he brought his girlfriend here for Thanksgiving. He was proud of that girl, besotted."

Mrs. Cronin said, "We were distressed because she was a very unfortunate choice, but Tommy is-was-young and experimenting, and we thought he would get over her, given time and experience."

"Why did you think she was an unfortunate choice, Mrs. Cronin?" Sherlock asked.

"It became obvious to us she was using Tommy to gain entree to our world, probably sleeping with him to keep him interested. I even saw her making notes while they were here, saw her messaging on her phone. She was doubtless writing down what Palmer said to post on a blog, or some such thing.

"Her name is Melissa Ivy, and she is a soph.o.m.ore at George Washington, a communications major."

Mr. Cronin said, "When we asked her what she intended to do with her communications degree, she told us she wanted to become a TV news anchor. Many things fell into place. It should have been clear to Tommy as well, but it didn't appear to be. He was so young. We asked how they'd met. We were not surprised to learn she had sought Tommy out. I even chanced to see them kissing. I know, I know, they are young, but still-we had no wish to see her here after that."

"Tommy called me in early December," Mrs. Cronin said. "He wanted her to come over on Christmas Eve, when all the family gathers here. He was upset when we told him we did not wish to have her in our home again." Mrs. Cronin sighed. "He was angry, demanded to know why we didn't like her. I was honest, told him she was using him, that she was even taking notes during her visit here, that it wouldn't surprise me if she'd tried to sell her 'exclusive' with us to the tabloids.

"Tommy didn't come Christmas Eve. We never saw him again after Thanksgiving. We regretted his absence, as did his Aunt Marian and his sisters, but what I told him was honestly what we thought, it was the truth."

He was twenty years old and in love, for heaven's sake, Sherlock thought, and wondered how the Avilla Cronin she'd read about had become so rigid and judgmental. She could only imagine the intense and never-ending scrutiny that had colored their every interaction because of Mr. Cronin's position over the years, particularly after the world's economies had almost imploded.

Mrs. Cronin said, "I imagine she broke off with him when she realized we'd seen through her. If only I'd been able to see Tommy again, before he-" She swallowed. "Tommy was such a bright boy, a very high GPA, higher even than yours, Palmer, or his father's, at Magdalene. He'd laugh when we asked him what he was doing besides studying. He didn't have all that much time to socialize, he told us; he had to study too hard."

Mr. Cronin said, "So you see, don't you, Agent Savich, that Tommy simply didn't have the time to stir up a lot of enmity from anyone. I'm sure some students were jealous of him because of his grades, but surely not because of his connections. After all, most of the students at Magdalene come from families of position and wealth."

"He tended to be a loner," Mrs. Cronin said, "not very big on parties or drinking. That's not to say he wasn't popular, because he was, maybe not in high school, but he was admired and rewarded at Magdalene for his fine mind and his hard work.

"We always found him levelheaded, and respectful to us. The only time he gave us cause for worry was when he brought that Melissa Ivy girl here with her notebook, and her fingers flying on her phone." She fanned her thin veined hands in front of her. "What else is there to say about him? He gave Palmer the lovely cashmere sweater for Christmas." Avilla Cronin's fingers lightly stroked her husband's arm, feeling the soft material. She blinked and licked her lips, so white they disappeared into her parchment face.

Sherlock said, "If we could discuss some of Tommy's other friends, perhaps. Of course we will be speaking about that with Tommy's aunt, Marian Lodge, and Tommy's two sisters as well."

Cronin's old mouth seamed and twisted. "Marian-she will mourn the boy with us as if she were his mother, though she showed no such courtesy to my own son, Palmer Junior, when he died. But that is a family matter." He fell silent for a moment. "Avilla and I couldn't take the children, simply couldn't, so we stepped back when she sought their guardianship.

"You asked about other friends. One of the boys Tommy brought here regularly was Peter Biaggini-I remember I didn't care for him. He was a handsome boy, but too polite, a bootlicker, that's what you called him, Avilla. Nor did I like the way he tried to dominate Tommy, treated him as if Tommy were his acolyte or his boy Friday. Why Tommy put up with that, I can't say.

"There was Stony Hart-his real name is Walter. His father, Wakefield Hart, was at one time a colleague of mine, one of the senior accounting officers at Fannie Mae during the accounting irregularities that led to the whole senior staff resigning some eight years ago. When he was forced to resign that position, he reinvented himself as a financial consultant and a public speaker. Perhaps you've heard of him. He earns most of his money now denouncing his erstwhile colleagues, calling for decentralization and regulations, and warning of financial Armageddon. We no longer speak.

"His son, Stony, though, has always seemed a fine boy, though he, too, seemed too much under Peter Biaggini's thumb. Actually, all of them were. Stony-Walter-is another smart young man who attended MIT, one of those very logical people who used to write software programs for fun, and now- I really don't know what he is doing now." Mr. Cronin stopped talking, as if it were simply too much effort to continue.

Avilla said abruptly, "When will we be able to bury Tommy?"

Savich said, "We will notify you as soon as we know."

Henderson County Hospital

Sunday morning

When Griffin left the elevator on the hospital's third floor, he stopped to speak with Maestro Deputy Tuck Warner, stationed outside Delsey's room. There'd been a lot of people wanting to see Delsey, Tuck told him. He'd let Henry Stoltzen in again since Delsey had called out when she'd heard his voice. Anna was still with Delsey. He said Anna's name with a good deal of affection. Griffin didn't know if Deputy Warner was married, but if he was, Griffin hoped he curbed his enthusiasm at home.

Warner said, "We all know Anna. She's not snooty like some of the students at Stanislaus. She's always nice, always ready with some fresh coffee and a big smile when you sit down at the diner. She even invited some of us to one of the concerts at Stanislaus last fall, to hear her play a violin solo."

Anna was sitting beside Delsey's bed, her head down, her long hair falling along her face, looking over some papers on her lap. All her winter gear was on the floor beside her chair. She was wearing jeans and a blue turtleneck, boots on her feet. He heard Delsey in the bathroom taking a shower. She was set on leaving the hospital once she was cleaned up. Griffin knew she'd walk over him to get out of here.

"h.e.l.lo again, Ms. Castle."

Her head jerked up, and she shuffled the papers she was reading and slipped them back inside a notebook. He held out his hand to her, showing her the photo of the dead man's body on his cell. He saw something in her eyes, something hard, maybe a flash of anger, and then it was gone. "I understand you never knew his name, Ms. Castle?"

She looked up at him, her eyes clear, and when she spoke, her words came out so slowly as to be nearly frozen. "No, he never mentioned his name. I didn't want to be rude and ask. As I told Agent n.o.ble, what I remember about him is that he usually sat alone in the back, and he was always a good tipper."

"Do you remember any of your conversations with him?"

"We only spoke about everyday things as I took his order. He was friendly."

"You never asked him what he was doing in Maestro?"