When the phone’s map indicated he was about to pass the Youngs’ address, he glanced to the right and took in the scene. Marnie Young’s childhood home was an unassuming redbrick Cape Cod–style house with a stepped, brick walkway leading up the gentle slope of their well-kept front lawn from the foot of a well-worn asphalt driveway. A black four-door Jeep Wrangler with a United States Marine Corps spare tire cover and a gold naval aviator bumper sticker sat on the driveway about midway between the street and the garage. Easy peasy.

Credit card data put her in one of two area coffee shops almost every day for a few hours, and now they knew what to look for. According to CONTROL, Marnie Young, a combat-decorated Marine Corps helicopter pilot, had recently left active duty to pursue a civilian career, presumably in the DC area. She’d been one of only two people to attend Helen Gray’s wake here in Falls Church—Karl Berg had been the other—which put her at the top of the likely Devin Gray contacts list. CONTROL assumed they had some kind of ongoing connection.

They’d slap a few trackers on her Jeep and hope for the best. Same with the car belonging to Devin’s father, who lived in a very similar Falls Church neighborhood. Hope for the best pretty much described the overall surveillance strategy at this point, since it was in no way feasible for his team to physically stake out either of the houses.

Harvey and his wife, whom he’d just dropped at a nearby Enterprise Rent-A-Car office to acquire a new surveillance vehicle, would work with Rick Gentry to follow Marnie Young. They’d most likely take rooms at the Hampton Inn less than a half mile away and wait for her tracker to start moving. That way they wouldn’t run the risk of unknowingly parking in front of an FBI agent’s house and land them all in an interrogation room at the J. Edgar Hoover Building on the other side of the Potomac River.