It was a rainy November afternoon in the city of Everett, in Washington state. A white Subaru sedan stopped in front of the Buxton residence. A man in a plaid shirt stepped out of the car. He opened the trunk, took out a brown cardboard box, and walked toward the front door. No one was home. He dropped the box on the mat and looked around. The street was empty. He took out his phone, clicked on an app, and looked around again. Seeing no one, he bent down and picked up a different, smaller box. Then, he turned around, walked back to his car, and drove away.