On the Heroes episode "I Am Become Death," this version of Peter Petrelli was shot and killed. But his niece. It's a complicated story, one that makes little sense even to the most ardent fans of the show.
Claire: My dad lied to me about my entire life; my biological parents, my ability, you can’t just hide things like that! There’s got to be something on there. Zack: If your dad’s the guy you’re describing I don’t think he’s gonna keep his secrets on the family computer.