Deja Dead Page 0,157

to its complement. I used a command to emphasize edges, sharpening the tiny trail against the orange background.

I leaned back and stared. It is. I inhaled deeply. Sweet Jesus, it really is.

With a trembling hand I reached for the phone.

A recorded message told me Bergeron was still on vacation. I was on my own.

I sifted the possibilities. I’d seen him do it several times. I could try. I had to know.

I looked up another number.

“Centre de Détention Parthenais.”

“This is Tempe Brennan. Is Andrew Ryan there? He’d be with a prisoner named Tanguay.”

“Un instant. Gardez la ligne.”

Voices in the background. Come on. Come on.

“Il n’est pas ici.”

Damn. I looked at my watch. “Is Jean Bertrand there?”

“Oui. Un instant.”

More voices. Clatter.

“Bertrand.”

I identified myself, explained what I’d found.

“No shit. What did Bergeron say?”

“He’s on vacation until next Monday.”

“Cheese, that’s beautiful. Kind of like your false starts, eh? What do you want me to do?”

“Find a piece of plain Styrofoam and get Tanguay to bite down on it. Don’t stick it too far into his mouth. I just need the front six teeth. Have him bite edge to edge so you get nice clean tooth marks, one arch on each side of the plate. Then I want you to take the Styrofoam downstairs to Marc Dallair in photography. He’s way in back, behind ballistics. You got that?”

“Yeah. Yeah. How do I get Tanguay to agree to this?”

“That’s your problem. Figure something out. If he’s screaming innocent he should be delighted. “

“Where am I supposed to come up with Styrofoam at four-forty in the afternoon?”

“Go buy yourself a bloody Big Mac, Bertrand. I don’t know. Just get it. I’ve got to catch Dallair before he leaves. Get moving!”

Dallair was waiting for an elevator when my call came. He took it at the reception desk.

“I need a favor.”

“Oui.”

“Within the hour Jean Bertrand will bring bite mark specimens to your office. I need to have the image scanned into a Tif file and sent to me electronically as soon as possible. Can you do that?”

There was a long pause. In my mind I could see him glance at the elevator clock.

“Does this have to do with Tanguay?”

“Yes.”

“Sure. I’ll wait.”

“Angle the light across the Styrofoam as close to parallel as possible to really bring the marks out. And be sure to include a scale, a ruler or something. And please make sure the image is exactly one to one.”

“No problem. I think I have an ABFO ruler here somewhere.”

“Perfect.” I gave him my e-mail address and asked him to call when he’d sent the file.

Then I waited. Seconds crept by with glacial slowness. No phone. No Katy. The digits on the clock glowed green. I heard them change. Click, click, click as the rotors turned.

When the phone rang I grabbed it.

“Dallair.”

“Yes.” I swallowed and the pain was excruciating.

“I sent the file about five minutes ago. It’s called Tang.tif. It’s compressed, so you’ll have to unencode. I’ll stick here until you’ve downloaded, to be sure there’s no problem. Just send a reply. And good luck.”

I thanked him and hung up. Moving to the computer I logged into my mailbox at McGill. The Mail Waiting!!! message glowed brightly. Ignoring other unread mail, I downloaded the file Dallair had sent, and returned it to its graphic format. A dental imprint arched across the screen, each tooth clearly visible against a white background. To the left and below the impression was a right-angle ABFO ruler. I sent Dallair a reply and logged off.

Back in the imaging program, I called up Tang.tif and double-clicked it open. Tanguay’s impression filled the screen. I retrieved the bite mark in the Rue Berger cheese, and tiled the two images side by side.

Next I converted both images to an RGB scale, to maximize the amount of information in the pictures. I adjusted tone, brightness, contrast, and saturation. Finally, using the image editor I sharpened the edges on the Styrofoam impression as I had with the indentations in the cheese.

For the type of comparison I planned to try, both images had to be to the same scale. I got out a needle point caliper and checked the ruler in the Tanguay photo. The distance between hash marks was exactly one millimeter. Good. The image was one to one.

There was no ruler in the Berger photo. Now what?

Use something else. Go back to the full image. There has to be a known.

There was. The Burger King cup touched the bowl adjacent to the cheese, its red and yellow logo