"I sat next to him at a couple of lectures. We made small talk during the breaks. He bought Cara and me a glass of wine on the last afternoon, at happy hour. Told us he lived in Manhattan, that he was a doctor. Nothing more than that."

"He invited you to New York?"

"Not exactly. I told him that we'd never been here, but that we had a trip planned for the spring. He was very friendly, very kind. Cara asked him if he knew any inexpensive hotels, since we're on student budgets, and he told us we could stay at his apartment."

"Did you talk about the sleeping arrangements?"

"Yes, of course. Selim told us he had a girlfriend, and that he'd either stay over at her place or sleep on a futon in the living room. He offered us the twin beds," Jean said. "He gave me his card, Ms. Cooper, with his office phone and everything. He's a medical doctor- a psychiatric resident. It seemed perfectly safe to both of us."

"It should have been perfectly safe," I said, trying to reassure her that it was not her own judgment that precipitated her victimization. "Did you correspond with him after that first meeting?"

Jean shrugged. "A couple of e-mails, maybe. Nothing personal. I thanked him for his offer and asked him whether he really meant it. Then I sent him another one a month ago, after Cara and I set our travel dates, to see if those were still good for him."

Mercer nodded at me over Jean's head. He was keeping a list of things to do, and getting subpoenas for the e-mail records of both parties would be added to his tasks. We had worked together often enough to know each other's professional style, especially for documenting every corroborating fact we could in this often bizarre world of sex crimes.

"Were there any phone calls between you two?"

"Just one, a week ago. I left him a voice mail explaining when our bus arrived at the Port Authority and making sure it was a convenient time to show up at his apartment. He called me back late that night and we talked for a while."