She was naturally separating him from the others for questioning, very good police procedure, but to be perfectly honest it did not light a fire in my heart. I knew without knowing why that none of these people had anything meaningful to contribute. Judging from this first specimen, it was probably safe to apply that generalization to his life as well as to this murder. This was just dull routine make-work that had been doled out to Deb because the captain thought she had done something good, but she was still a pest. So he had sent her away with a piece of real detective drudgery to keep her busy and out of sight. And I had been dragged with her because Deb wanted me along. Possibly she wanted to see if my fantastic ESP powers could help determine what these office sheep had eaten for breakfast. One look at this young gentleman's complexion and I was fairly sure he had eaten cold pizza, potato chips, and a liter of Pepsi. It had ruined his complexion and given him an air of vacuous hostility.

Still, I followed along as Mr. Grumpy directed Deborah to a conference room at the back of the building. There was a long oak table with ten black high-backed chairs in the center of the room, and a desk in the corner with a computer and some audio-visual equipment. As Deb and her pimply young friend sat and began trading frowns, I wandered over to the desk. A small bookshelf sat under the window beside the desk. I looked out the window. Almost directly below me I could see the growing crowd of reporters and squad cars that now surrounded the door where we had gone in with Steban.

I looked at the bookshelf, thinking I would clear a small space and lean there, tastefully away from the conversation. There was a stack of manila folders and perched on top of it was a small gray object. It was squarish and looked to be plastic. A black wire ran from the thing over to the back of the computer. I picked it up to move it.

“Hey!” the surly geek said. “Don't mess with the webcam!”

I looked at Deb. She looked at me and I swear I saw her nostrils flair like a racehorse at the starting gate. “The what?” she said quietly.

“I had it focused down on the entrance,” he said. “Now I gotta refocus it. Man, why do you have to mess with my stuff?”

“He said webcam,” I said to Deborah.

“A camera,” she said to me.

“Yes.”

She turned to young Prince Charming. “Is it on?”

He gaped at her, still concentrating on maintaining his righteous frown. “What?”

“The camera,” Deborah said. “Does it work?”

He snorted, and then wiped his nose with a finger. “What do you think, I would get all worked up if it didn't? Two hundred bucks. It totally works.”

I looked out the window where the camera had been pointing as he droned on in his surly grumble. “I got a Web site and everything. Kathouse.com. People can watch the team when they get here and when they leave.”

Deborah drifted over and stood beside me, looking out the window. “It was pointed at the door,” I said.

“Duh,” our happy pal said. “How else are people on my Web site gonna see the team?”

Deborah turned and looked at him. After about five seconds he blushed and dropped his eyes to the table. “Was the camera turned on last night?” she said.

He didn't look up, just mumbled, “Sure. I mean, I guess so.”

Deborah turned to me. Her computer knowledge was confined to knowing enough to fill out standardized traffic reports. She knew I was a little more savvy.

“How do you have it set up?” I asked the top of the young man's head. “Do the images automatically archive?”

This time he looked up. I had used archive as a verb, so I must be okay. “Yeah,” he said. “It refreshes every fifteen seconds and just dumps to the hard drive. I usually erase in the morning.”

Deborah actually clutched my arm hard enough to break the skin. “Did you erase this morning?” she asked him.

He glanced away again. “No,” he said. “You guys came stomping in and yelling and stuff. I didn't even get to check my e-mail.”

Deborah looked at me. “Bingo,” I said.

“Come here,” she said to our unhappy camper.

“Huh?” he said.

“Come here,” she repeated, and he stood up slowly, mouth hanging open, and rubbed his knuckles.

“What,” he said.

“Could you please come over here, sir?” Deborah ordered with truly veteran-cop technique, and he stuttered into motion and came over. “Can we see the pictures from last night, please?”

He gaped at the computer, then at her. “Why?” he said. Ah, the mysteries of human intelligence.

“Because,” Deborah said, very slowly and carefully. “I think you might have taken a picture of the killer.”

He stared at her and blinked, then blushed. “No way,” he said.

“Way,” I told him.

He stared at me, and then at Deb, his jaw hanging open. “Awesome,” he breathed. “No shit? I mean- No, really? I mean-” He blushed even harder.

“Can we look at the pictures?” Deb said. He stood still for a second, then plunged into the chair at the desk and touched the mouse. Immediately the screen came to life, and he began typing and mouse-clicking furiously. “What time should I start?”

“What time did everybody leave?” Deborah asked him.

He shrugged. “We were empty last night. Everybody gone by, what-eight o'clock?”

“Start at midnight,” I said, and he nodded.

“'Kay,” he said. He worked quietly for a moment, then, “Come on,” he mumbled. “It's only like a six hundred megaherz,” he said. “They won't update. They keep saying it's fine, but sooooo freaking slow, and it won't- Okay,” he said, breaking off suddenly.

A dark image appeared on the monitor: the empty parking lot below us. “Midnight,” he said, and stared at the screen. After fifteen seconds, the picture changed to the same picture.

“Do we have to watch five hours of this?” Deborah asked.

“Scroll through,” I said. “Look for headlights or something moving.”

“Riiiiiight,” he said. He did some rapid point-and-click, and the pictures began to flip past at one per second. They didn't change much at first; the same dark parking lot, one bright light out at the edge of the picture. After about fifty frames had clicked past, an image jumped into view. “A truck!” Deborah said.

Our pet nerd shook his head. “Security,” he said, and in the next frame the security car was visible.

He kept scrolling, and the pictures rolled by, eternal and unchanging. Every thirty or forty frames we would see the security truck pass, and then nothing. After several minutes of this, the pattern stopped, and there was a long stretch of nothing. “Busted,” my greasy new friend said.

Deborah gave him a hard look. “The camera is broken?”

He looked up at her, blushed again, and looked away. “The security dudes,” he explained. “They totally suck. Every night at, like, three? They park over at the other side and go to sleep.” He nodded at the unchanging pictures scrolling past. “See? Hello! Mr. Security Dude? Hard at work?” He made a wet sound deep in his nose that I had to assume was meant to be laughter. “Not very!” He repeated the snorting sound and started the pictures scrolling again.

And then suddenly- “Wait!” I called out.

On-screen, a van popped into view at the door below us. There was another pop as the image changed, and a man stood beside the truck. “Can you make it go closer?” Deborah asked.

“Zoom in,” I said before he could do more than frown a little. He moved the cursor, highlighted the dark figure on the screen, and clicked the mouse. The picture jumped to a closer look.

“You're not gonna get much more resolution,” he said. “The pixels-”

“Shut up,” said Deborah. She was staring at the screen hard enough to melt it, and as I stared too I could see why.

It was dark, and the man was still too far away to be certain, but from the few details I could make out, there was something oddly familiar about him; the way he stood frozen in the image on the computer, his weight balanced on both feet, and the overall impression of the profile. Somehow, as vague as it was, it added up to something. And as a very loud wave of sibilant chuckling erupted from deep in the backseat of my brain, it fell on me with the impact of a concert grand piano that, actually, he looked an awful lot like-