The term also created narrative closure. When the Public Enemy Number One was identified, shot, and confirmed dead through fingerprint comparison — when the postmortem prints matched the known record and the FBI could announce that the man lying in the Cook County morgue was definitively John Dillinger — the story had an ending. The Public Enemy designation had created a protagonist for the drama of the federal manhunt; the fingerprint identification confirmed that the drama was over.
The identification mattered because the designation had made it matter. If Dillinger had simply been a federal fugitive among many, his death would have been a law enforcement event without particular symbolic weight. The “Public Enemy Number One” framing had turned it into something larger — a confrontation between federal authority and its most prominent challenger. The fingerprint finding was the evidentiary confirmation that the confrontation had ended the way the FBI needed it to end.
That confluence of forensic evidence and institutional narrative — the technical finding of the fingerprint examiner and the public-facing story the FBI was telling about itself — is part of what made the Dillinger case endure in the history of American law enforcement. The ridges confirmed the identity. The identity closed the case. The case closed an era.