DUBSTEPFBI Special Agent Dawna Shepherd watched the gleaming Lincoln Navigator roll into the parking lot of the northern Virginia Safeway. A dozen other vehicles clustered near the grocery store entrance, but the burgundy SUV bypassed them and headed toward Dawna at the far corner of the lot. The driver must be her target, the not-so-innocent bystander who’d witnessed an auto accident that had supposedly happened last week right where she stood. She tucked her clipboard under her arm, freeing a hand to shade her eyes from the glare of a bright November afternoon sun. The SUV parked next to the boxy sedan she was using for this undercover operation. The muscles in her upper back tightened as the man who had to be Clayton D. Cooper slid out. Winning his confidence was vital to the op’s suc

