Heroes, "I Am Become Death" - Spoilers

[Reijin]

In Season 2 (I believe it was 2), Sylar basically turned semi-good guy for a while there. He visited his mom and was questioning his entire purpose and all, but then his mom totally went psycho on him when he showed her his powers and basically shunned him and pushed him over the edge.

But no, I wasn't surprised. Sylar is, in every way, simply a "goal oriented villian". He does exactly what he needs to accomplish his goal, in the most logical and thought out way, and in typical fashion (like the color blue in magic) he'll put aside things like morality for the sake of further knowledge and goal accomplishment. Its not necessarily an emotional thing for him to remove something interfering with his plan. I love the character and its how I've written Reijin in the past.

By the way:

You realize that aging is a deterioration of cells, right?

Theoretically, if he had total control over his regenerative capabilities, he could 'age' and 'de-age' them at will... Which seems to be what he's doing.

This is exactly what I was trying to say regarding Peter using Claire's ability as a "further evolution" of it, which we learned can happen by things like Matt's father and Adam Monroe. That's what I believe he's doing. Peter could easily regen away his scar, and he chooses not to. He obviously has control over his regeneration abilities at that point. I believe he even said to someone that he leaves it as a reminder of something, so that just furthers my theory.