"You get a look at the driver?"

"It was too dark and he was behind me. But there was definitely just one person inside the car. Him, the driver."

"Him? You're sure about that?"

"All I saw was a big shape, someone with short hair, okay? Of course it was a him. It was awful. He was sitting rigidly, staring straight at the back of my head. Just this shape, staring. Right on my bumper. I told Henna. I told her about it. I told her to be careful, to keep an eye out for a black Cougar and if she saw a car like that near the house to call 911. She knew what was going on in the city. The murders. We talked about it. Dear God! I can't believe it! She knew! I told her not to leave her windows unlocked! To be careful!"

"So it was normal for her to have a window or two unlocked, maybe open."

Abby nodded and wiped her eyes. "She's always slept with windows open. It's hot in here sometimes. I was going to get air-conditioning, have it installed by July. I just moved in right before she came. In August. There was so much else to do and fall, winter, wasn't that far off. Oh, God. I told her a thousand times. She was always off in her own world. Just oblivious. I couldn't get it to sink in. Just like I never could get her to fasten her seatbelt. She's my baby sister. She's never liked me telling her what to do. Things slid right over her, it's like she didn't even hear them. I'd tell her. I'd tell her the things that go on, the crimes. Not just the murders, but the rapes, the robberies, all of it. And she'd get impatient. She didn't want to hear it. She'd say, 'Oh, Abby, you see only the horrible things. Can't we talk about something else?'

I have a handgun. I told her to keep it by her bed when I wasn't here. But she wouldn't touch it. No way. I offered to teach her how to shoot it, to get her one of her own. But no way. No way! And now this! She's gone! Oh, God! And all these things I'm supposed to tell you about her, about her habits and everything, it doesn't matter!"

"It does matter. Everything matters…"

"None of it matters because I know it wasn't her he was after! He didn't even know about her! He was after me!"

Silence.

"What makes you think that?"

Marino calmly asked.

"If it was him in the black car, then I know he was after me. No matter who he is, I'm the one who's been writing about him. He's seen my byline. He knows who I am."

"Maybe."

"Me! He was after me!"

"You may have been his target," Marino matter-of-factly told her. "But we can't know that for sure, Miss Turnbull. Me, I've got to consider all possibilities, like maybe he seen your sister somewhere, maybe on the campus or in a restaurant, a shop. Maybe he didn't know she lived with somebody, especially if he followed her while you was at work - if he followed her at night and saw her come in when you wasn't home, I'm saying. He may not have had any idea you're her sister. It could be a coincidence. Was there any place she frequented, a restaurant, a bar, any place?"

Wiping her eyes again, she tried to remember. "There's a deli on Ferguson within walking distance of the school. The School of Broadcasting. She ate lunch there once or twice a week, I think. She didn't go to bars. Now and then we ate out at Angela's on Southside but we were always together on those occasionsshe wasn't alone. She may have gone other places, shops, I mean. I don't know. I don't know every single thing she did every minute of the day."

"You say she moved in last August. She ever leave, maybe for the weekend, take any trips, that sort of thing?"

"Why?" She was bewildered. "You thinking someone followed her, someone from out of town?"

"I'm just trying to ascertain when she was here and when she wasn't."

She said shakily, "Last Thursday she went back to Chapel Hill to see her husband and spend some time with a friend. She was gone most of the week, got back on Wednesday. Today classes started, the first day of classes for the summer session."

"He ever come here, the husband?"

"No," she warily replied.

"He have any history of being rough with her, of violence-"

"No!" she blurted out. "Jeff didn't do this to her! They both wanted a trial separation! There wasn't any animosity between them! The pig who did this is the same pig who's been doing it!"

Marino stared at the tape recorder on the table. A tiny redlight was flashing. He checked the pockets of his jacket and looked irritated. "I'm gonna have to go out to the car for a minute."

He left Abby and me alone in the bright white living room.

There was a long, uncomfortable silence before she looked at me.

Her eyes were bloodshot, her face puffy. Bitterly, miserably, she said to me, "All those times I've wanted to talk to you. And now, here it is. This. You're probably secretly glad. I know what your opinion of me is. You probably think I deserve it. I get a dose of what the people I write about must feel. Poetic justice."

The remark cut me to the bone. I said with feeling, "Abby, you don't deserve this. I would never wish this on you or anyone."

Staring down at her tightly clenched hands, she painfully went on, "Please take care of her. Please. My sister. Oh, God. Please take care of Henna…"

"I promise I'll take care of her…"

"You can't let him get away with this! You can't!"

I didn't know what to say.

She looked up at me and I was startled by the terror in her eyes. "I don't understand anything anymore. I don't understand what's going on. All these things I've been hearing. And this happens. I tried. I tried to find out, tried to find out from you. Now this. I don't know who's us or them anymore!"

Quietly, I said, "I don't think I understand, Abby. What did you try to find out from me?"

She talked very fast. "That night. Earlier in the week. I tried to talk to you about it. But he was there…"

It was coming to me. I dully asked, "What night?"

She looked confused, as if she couldn't remember. "Wednesday," she said. "Wednesday night."

"You drove to my house late that night and then quickly drove off? Why?"

She stammered, "You… you had company."

Bill. I remembered we stood in the glare of the front porch light. We were in plain view and his car was parked in my drive. It was her. Abby was the one who drove up that night, and she saw me with Bill, but this didn't explain her reaction. Why did she panic? It seemed a frightened visceral reflex when she extinguished her headlights and slammed the car into reverse.

She was saying, "These investigations. I've heard things. Rumors. Cops can't talk to you. Nobody's supposed to talk to you. Something's screwed up and that's why all calls are being referred to Amburgey. I had to ask you! And now they're saying you screwed up the serology in the surgeon… Lori Petersen's case. That the entire investigation's screwed up because of your office and if it wasn't for that the cops might have caught the killer by now…"

She was angry and uncertain, staring wildly at me. "I have to know if it's true. I have to know! I have to know what's going to happen to my sister!"

How did she know about the mislabeled PERK? Surely Betty wouldn't tell her. But Betty had concluded her serology tests on the slides, and copies - all copies of all lab reports - were being sent straight to Amburgey. Did he tell Abby? Did someone in his office tell her? Did he tell Tanner? Did he tell Bill?

"Where did you hear this?"