In the episode "Villains," Peter and Nathan attended their parents' anniversary party. These were the good ol' days, weren't they?
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Arthur and Linderman are up to no good. In this scene, the pair is plotting to murder Nathan.
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Elle came to Sylar's rescue when he tried to kill himself a year or so again. The Company Agent had an agenda, however.
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Gabriel Gray, pre-Sylar, almost killed himself a year or so ago. So we learned in the episode "Villains."
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Remember when Angela and Arthur Petrelli were married? Feels like forever ago, doesn't it?
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Arthur and Linderman are cooking of an evil plot. This photo is courtesy of a Heroes flashback.
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Heroes Season 3 Episode 8 Quotes

We created a monster, and set him loose in the world.

Elle

We're not missionaries. If they'd wanted us to bring him in, that would've been the assignment. It wasn't.

HRG