and sediment stuck to the metal. Like a sort of a geological fingerprint."
"OK, so where has it been?" McGrath asked.
"Started out in California," Brogan said. "Citrus grower called Dutch Borken bought it, ten years ago, in Mojave. The manufacturer traced that for us. That part is nothing to do with geology. Then the scientists say it was in Montana for a couple of years. Then they drove it over here, northern route, through North Dakota, Minnesota, and Wisconsin."
"They sure about this?" McGrath said.
"Like a trucker's logbook," Brogan said. "Except written with shit on the underneath, not with a pen on paper."
"So who is this Dutch Borken?" McGrath asked. "Is he involved?"
Brogan shook his head.
"No," he said. "Dutch Borken is dead."
"When?" McGrath asked.
"Couple of years ago," Brogan said. "He borrowed money, farming went all to hell, the bank foreclosed, he stuck a twelve-bore in his mouth and blew the top of his head all over California."
"So?" McGrath said.
"His son stole the pickup," Brogan said. "Technically, it was the bank's property, right? The son took off in it, never been seen again. The bank reported it, and the local cops looked for it, couldn't find it. It's not licensed. DMV knows nothing about it. Cops gave up on it, because who cares about a ratty old pickup? But my guess is this Borken boy stole it and moved to Montana. The pickup was definitely in Montana two years, scientists are dead sure about that."
"We got anything on this Borken boy?" McGrath asked him.
Brogan nodded. Held up another sheaf of paper.
"We got a shitload on him," he said. "He's all over our database like ants at a picnic. His name is Beau Borken. Thirty-five years old, six feet in height and four hundred pounds in weight. Big guy, right? Extreme right-winger, paranoid tendencies. Now a militia leader. Balls-out fanatic. Links to other militias all over the damn place. Prime suspect in a robbery up in the north of California. Armored car carrying twenty million in bearer bonds was hit. The driver was killed. They figured militia involvement, because the bad guys were wearing bits and pieces of military uniforms. Borken's outfit looked good for it. But they couldn't make it stick. Files are unclear as to why not. And also, what's good for us is before all that, Beau Borken was one of the alibis Peter Wayne Bell used to get off the rape bust. So he's a documented associate of somebody we can place on the scene."
Milosevic looked up.
"And he's based in Montana?" he said.
Brogan nodded.
"We can pinpoint the exact region, more or less," he said. "The scientific guys at Quantico are pretty hot for a couple of particular valleys, northwest corner of Montana."
"They can be that specific?" Milosevic said.
Brogan nodded again.
"I called them," he said. "They said this sediment in the wheel arches was local to a particular type of a place. Something to do with very old rock getting scraped up by glaciers about a million years ago, lying there nearer the surface than it should be, all mixed up with the regular rock which is still pretty old, but newer than the old rock, you know what I mean? A particular type of a mixture? I asked them, how can you be so sure? They said they just recognize it, like I would recognize my mother fifty feet away on the sidewalk. They said it was from one of a couple of north-south glacial valleys, northwest corner of Montana, where the big old glaciers were rolling down from Canada. And there was some sort of crushed sandstone in there, very different, but it's what the Forest Service use on the forest tracks up there."
"OK," McGrath said. "So our guys were in Montana for a couple of years. But have they necessarily gone back there?"
Brogan held up the third of his four piles of paper. Unfolded a map. And smiled for the first time since Monday.
"You bet your ass they have," he said. "Look at the map. Direct route between Chicago and the far corner of Montana takes you through North Dakota, right? Some farmer up there was walking around this morning. And guess what he found in a ditch?"
"What?" McGrath asked.
"A dead guy," Brogan said. "In a ditch, horse country, miles from anywhere. So naturally the farmer calls the cops, the cops print the corpse, the computer comes back with a name."
"What name?" McGrath asked.
"Peter Wayne Bell," Brogan said. "The guy who drove away with Holly."