THE SHOOTER passed the front of the redbrick historic courthouse, which was guarded by a bronze Civil War infantryman with a fixed bayonet and a plaque. He paused next to a hedge, behind a tree trunk, bent over with his hands on his knees, as if catching his breath or stretching his hamstrings, like runners do. Looked around. Said quietly, “On point.”

Dark, silent. Waiting for something to happen. Nothing did. After a last look around, he pulled off the reflective strap and stuffed it in a pocket. When he did that, he vanished. He was gone; he was part of the fabric of the night.

Across from the courthouse, just downhill, a metal spire pushed up from a vest-pocket park, illuminated by spotlights. Ten-foot granite slabs anchored the foot of the needle. On the slabs were more bronze plaques, with the names of the local boys who didn’t make it back from all the wars fought since Stillwater was built. A blank plaque awaited names from Iraq and Afghanistan.

The shooter slipped across the street, to the edge of the memorial. The brilliant spotlights made the nearby shadows even darker. He disappeared into one of them, like an ink drop falling into a coal cellar. Before he went, he pulled back the sleeve of the running suit and checked the luminous dial of his combat watch.

If Sanderson stuck to his routine-or the dog’s routine, anyway- he’d walk down the west side of Third Street sometime in the next ten minutes. Big German shepherd. Shame about the dog.

CHUCK UTECHT had been the first man on the controller’s list. He’d been a smooth white egg of a man, whose insides, when he cracked, flowed out like a yellow yolk. He’d given up three names. He’d given them up easily.

“I only did one bad thing in my life,” he cried. “I’ve been making up for it ever since.”