"No other DNA in Emily's apartment?" Mercer asked.

"Oh, did I neglect to mention that? Coop's pal, Teddy Kroon. His prints are-"

"That's the first thing he told us last night," I said. "Of course they're everywhere. He found the body of his best friend and tried to see if there was anything he could do to save her."

"You know how you hate to be interrupted? Same goes for me. The prints don't surprise me too much-that's exactly what I was going to say. And neither does his DNA on a wineglass. Maybe it's a little tacky that he sat there swilling her lukewarm Chianti while he waited for the men in blue, but it's not a crime. On the other hand, it makes me wonder whether he was in the apartment earlier than he admitted to us-maybe even drinking there while he waited for Emily to come home."

"But the messages he left on the answering machine, from the bar they were supposed to meet in?"

"It's the oddest thing, Coop. Somebody erased them. I didn't want to say it in front of Teddy, but there were no recordings on it by the time I responded the other morning. And Teddy's got one more thing to explain."

"What's that?" Mercer asked.

"Why his DNA was all over the computer mouse on Emily's desk."

"How'd they get a genetic profile from a computer mouse?" Battaglia asked. "This guy drool on it?"

"Skin cells, Paul. They slough off with ordinary use. It probably means that Teddy Kroon was holding on to the mouse for several minutes, long enough to be opening files or surfing the Web without realizing he was leaving his own DNA fingerprint on it."

The scientific methodology of DNA had changed so radically since its forensic introduction in the last twenty years that it was not only possible to develop identifying evidence from minute samples of genetic material, but also to work from trace evidence, not just blood, semen, and saliva. Sweatbands inside baseball caps, tearstained clothing, and steering columns on stolen cars that had been handled by thieves to get them started could yield enough data to amplify and match to suspects or convicted offenders.

"What was he looking for?"

I was trying to brief Battaglia on the latest developments in the Upshaw case before he called in the media to give them news of our innovative John Doe strategy. As usual, he was asking questions to which I did not yet have answers. The computer forensics cops would have been livid if any of us at the scene tried to open the files.

"I don't know. We have to get him back in, boss. He never mentioned anything about the computer. I didn't think to ask him about it at the time."

Battaglia scowled and kept reading the remarks that Brenda had outlined for him. "How come it's only the house press?"

He liked it better when all the major networks covered his releases. This one would just be attended by the stringers assigned to the courthouse from each of the daily newspapers and the crime reporters from the local TV stations. "Short notice. Brenda didn't contact them until this morning."

The district attorney walked to the conference table at the far end of the room. He didn't need to tell me the rules again, but he always liked to do it. "I'll give them the story and take questions. If I need you to fill in any blanks, I'll just look over at you and you'll know you can answer. Tell Rose to let them in." He seated himself in a high-backed green leather chair, behind which a blowup of the rapist's sketch was propped against a bookshelf.

I stepped out to his executive assistant's desk and gave her the nod. Mercer followed me back in to flank Battaglia at the head of the table. The twelve journalists filed in and greeted the district attorney while cameramen set up tripods behind the old wooden chairs.

He read stiffly from the papers in front of him. "Good afternoon to all of you. What we've decided to undertake here is a bold new initiative-one more major step in our battle against sexual assault.

"This will be a joint effort on the part of prosecutors, police, and scientists to use both the latest technology and an innovative legal strategy to indict the Silk Stocking Rapist-as you people think you've so cleverly named him-on the basis of his DNA profile. We are going to stop the clock on the statute of limitations that would sooner or later allow him to escape the consequences of his crimes. Whenever we find him, he will have his day in court.

"This effort is smart, it's creative, it's proactive," Battaglia said. He pointed over his head at the artist's sketch. "But we need your help in capturing this predator. Then we'll make sure he never walks among us again. Thank you."

"Have you done this before, Mr. B?" the CBS newswoman called out.

"Twice. Very quietly. Now it's going to be business as usual when these monsters think they can beat us just because the legislature's too lazy to take a few minutes to eliminate the statute of limitations."

"Is this about sticking it to Albany then, Mr. District Attorney?"

"Those statutes were designed to protect against the dangers of faulty memories and lost witnesses. They're anachronisms," Battaglia said, a smile drawing slowly across his face. "Like the legislators themselves. Talk about faulty memories. Those last remarks were off the record, right?"

"When are you gonna catch this guy?" Mickey Diamond asked.

"The commissioner has stepped up his efforts and we've brought in some outside eyes to help review the situation. I'd expect that-"

"Outside? From where?"

"I'm not going to comment on that. Whose side are you on anyway?"

"If you think he's done so many of the cases, how come you only indicted him on this one charge?" the all-news-radio reporter asked.

"We wanted to get started with the oldest case, so we don't risk losing it. We'll be presenting the others later in the month to do a superseding indictment. But this gets us out there in the public awareness and into the national data banks without wasting any more time. This rapist can run but he won't be able to hide for very long."

"This weekend's murder, Mr. B, you have any idea why the police commissioner is hedging on calling it part of the Silk Stocking pattern?"

"It's premature to do that kind of thing and alarm the public until all the evidence is analyzed," Battaglia said, scowling again.

"Alarm the public?" Diamond said. "You got women running around the Upper East Side like it was the January white sale at Bloomingdale's. It's sheer bedlam today. I think panic is a better word for it."

"That's exactly what we're trying to avoid. Let me give you ladies and gents some of the latest statistics. The numbers for last year-violent crimes in Manhattan-are way down over the previous twelve-month period." I had heard this drill more times in ten years than I would ever be able to count. Battaglia's next sentence was predictable. "Figures don't lie, but liars figure."

He chuckled but most of the reporters rolled their eyes. "Homicides are lower, robberies are down-"

"Rape is the only category of felonies that went up. Why so, Mr. B?"

The side of his mouth twisted in my direction and he gave me an almost imperceptible nod, in gratitude for the briefing I'd done earlier. "There are two issues involved here," I said. "First, I think all of us involved in this work accept that there is more reporting of these crimes, not actually more victimization. We have so many more services available for survivors now-legally, medically, and psychological counseling, too.

"The second thing is that you have to make a distinction between stranger and acquaintance rapes. Stranger attacks represent fewer than twenty percent of reported sex crimes. That number has been very stable and has shown no significant increase anywhere in the city for more than five years."