Harry Potter: He killed my parents, didn't he? The one who gave me this. You know, Hagrid. I know you do.
Rubeus Hagrid: First, and understand this Harry because it's very important: Not all wizards are good. Some of them go bad. A few years ago... there was a one wizard who went as bad as he can go. His name was V... His name was V...
Harry Potter: Maybe if you wrote it down?
Rubeus Hagrid: No, I can't spell it. All right, Voldemort.
Harry Potter: Voldemort?
Rubeus Hagrid: It was dark times, Harry. Dark times. Voldemort started to gather some followers. Brought them over to the Dark Side. Anyone that stood up to him ended up dead. Your parents fought against him. But nobody lived once he decided to kill them. Nobody, not one. Except you.