How The Riddler Got His Name
S3, E15: Convinced that he doesn't need Penguin to succeed, Nygma begins to introduce himself to Gotham as "The Riddler," while Gordon learns some troubling news about his father's death.

S3, E15: Convinced that he doesn't need Penguin to succeed, Nygma begins to introduce himself to Gotham as "The Riddler," while Gordon learns some troubling news about his father's death.