Sneak Peek: Defender Kate Campbell sat in her Volkswagen Jetta, hoping that the darkness would help conceal the way she’d been lingering there, parked on the street, for the last twenty minutes. People came and went from the condo complex across the small residential road, pulling in and out of the entrance to the complex, or sometimes merely heading out for an early-evening stroll, taking advantage of the mild April temperatures while they still could. Within a month, Scottsdale would be blasting into the upper nineties, the day’s heat lingering long after the sun had set. An innocuous-looking manila envelope lay on the passenger seat of Kate’s car. Now it was dark enough that she’d have to turn on the overhead light in the car or get out her iPhone to shine its beam on the papers the e

