Ruiz compared his dates against the second envelope, the one about cars coming and going late at night. The match was not approximate. The van's overnight stays fell inside the same three-week window, and the nights Dana's car had also been there were the nights the note would have looked most convincing to someone standing across the street with a notebook. Two ordinary explanations, parked side by side, had been read as one suspicious pattern. Ruiz wrote that down too, and she noted Theo's tone: not defensive, not performative, just baffled that a driveway repair needed a detective.
Before he left, Theo asked about Marcus's door. Ruiz told him, briefly, that it was secured temporarily and that a proper repair would come later. Theo nodded and said he would help when the time came, with the frame and the lock both, because a door was a thing you fixed properly or not at all. He did not offer a theory about Linda Harper. He did not need one. His van had an invoice, his driveway had photographs, and the street had a repaving crew who would remember the job if anyone bothered to ask them. Ruiz intended to bother.
That evening, Theo stopped by Marcus's house, not to fix the door yet but to look at the brace and tell his friend, plainly, that the van would be out of the driveway soon and the street could watch an empty space if it wanted to. Marcus thanked him, and the two men stood on the porch for a few minutes talking about concrete and weather, as if those were the only subjects the street had ever needed.
On her whiteboard, she drew a line from Theo's van to the second envelope and wrote a single word beside it: explained. It was not the whole case. It was one thread pulled loose, and it pulled cleanly, without resistance. That, in her experience, was what innocent explanations did. They did not require anyone to believe in a hidden second story. They only required the paperwork that had been there all along.
The basement workshop at 1147 Briarwood Lane smelled faintly of solder and old wood, and when Marcus switched on the lights for Detective Ruiz, the room explained itself before he said a word. Workbenches ran along two walls. Radios in various states of repair sat in rows, their wooden cases polished, their dials clean, their backs open to show the careful wiring inside. Small parts lay sorted in trays: knobs, tubes, capacitors, lengths of wire coiled like sleeping snakes. A magnifying lamp hung over one bench. A notebook, open to a page of diagrams, lay beside a half-finished set. Nothing in the room looked hidden. Everything looked worked on.
"These are the packages," Marcus said, and he did not sound triumphant about it. He sounded like a man who had finally been given a chance to show someone the boring truth and was afraid it would still not be enough.
He showed Ruiz the invoices, filed by month in a binder that was itself a little embarrassing in its tidiness. Radio parts, ordered weekly, sometimes twice a week when a restoration needed a specific tube or a replacement dial. The suppliers' names were printed plainly. The delivery addresses were his own. The amounts were small, the kind of amounts a hobby costs when it is pursued seriously and without apology. Ruiz matched several invoices against the delivery dates Marcus had logged and against the third envelope, the one about packages every week. The packages had arrived because parts, when ordered, arrive in packages. There was no second step to the explanation, and Ruiz, who had expected to find one, found herself almost disappointed by how complete it was. Marcus showed her one set in particular, a tabletop radio with a walnut case that had arrived in pieces and now stood finished on the bench, its dial glowing softly. He had replaced its capacitors one by one, cleaned its speaker cloth with a soft brush, and tuned it until the stations held steady. The invoice for its final tube was in the binder, dated the same week as the third envelope.
"And the late lights?" she asked.
"I work on them at night," Marcus said. "After work, after dinner, when the house is quiet. The basement windows are small, but the light carries up the stairwell and out the back. If you stand across the street, you can see that something is lit. You can't see what it is. I suppose that was enough."