John Doe - The Mourner

Seizoen: 1 - Aflevering: 10 / 11 - Eerst uitgezonden: 13 december 2002 - Episode ID: 139874

The mysterious symbol on Doe's chest is part of the calling card left by a serial killer known as The Mourner who knows a lot about Doe, whom he challenges with cryptic clues as he puts more lives in danger.