A handwritten warning left on Murphy’s apartment notepad after the operation proves it can reach him at home.

The Apartment Note is the warning left behind after someone enters Trace Murphy’s apartment without forcing the locks, damaging the room, or taking anything obvious.
The message is not evidence theft. It is a demonstration. Whoever left it wanted Murphy to understand that the case had crossed from professional pressure into personal territory. His office could be searched. His movements could be watched. His notes could be read. And now, his home could be reached.
As an artifact, the note marks the moment the operation stops observing Murphy from a distance and begins speaking to him directly.