Donahue's board has a new section now.
He started it the morning after he sat in the hospital parking structure and watched Gideon walk to his car. He did not write the name publicly — not on the main board, not anywhere anyone else in the field office could see. He wrote it on a single index card and put the index card in his desk drawer.
The official board says: Unknown Subject, medical/surgical training, systematic targeting of violent criminals, believed active.
His private board says: Dr. Gideon Vale, Head of Trauma, Philadelphia General Hospital.
He has spent three weeks testing the theory the way you test a structure — not trying to prove it true, but trying to find where it fails. This is the discipline that has made him good at this work: he does not fall in love with his conclusions. He subjects them to everything he has and waits to see what survives.
The theory survives everything.
He has cross-referenced Gideon's published schedule — conferences, surgeries on record, departmental obligations — against the timeline of deaths. The overlaps are not perfect, because he would not expect them to be — a man this careful leaves deliberate gaps. But the geography is consistent. The intervals are consistent. The methods are consistent with the specific surgical knowledge of a trauma surgeon.
The sixty-two percent partial print, which is not enough for an arrest warrant but is more than enough for a professional opinion, is on Kelley's desk.
He knows.
The problem — and he has been sitting with this problem very honestly for three weeks — is that knowing and proving are separated by a distance that, in a case this clean, could be years. Gideon Vale does not make obvious mistakes. The glove tear is the first error he has seen in fourteen months of kills. One error in fourteen months is not a failing. It is a near-perfect record.
Donahue is patient. This is his primary advantage. He can wait longer than most people believe a human being can wait for a single thing, and he can do it without losing focus, without losing the specific quality of attention that this kind of work requires.
He puts the index card back in the drawer.
He picks up a fresh piece of red string.
He pins one end to Kelley's photograph and runs it, slowly, to a small card in the upper right corner of the board.
The card says: Gideon Vale.
The only two words on a board full of evidence and conjecture and months of careful thinking.
He steps back. He looks at it.
Patient. He is patient.
He has nowhere else to be.