Board Thread:False Info and Speculative Discussion/@comment-25841096-20160307071828/@comment-13965604-20160308150842

NishHound wrote: if a life of a innocent is taken the colour of the eyes will change into blue. Guilty or not it will be  blue as long as its an innocent life. Even if scott kills jennifer his eyes wont be Blue it will be either red or back to golden colour again.

We don't know anything about Peter's past, not really. We know he had blue eyes before he killed Laura (if Jeff doesn't try to retcon) We know he was manipulative (if we take the flash back from s3 at face value) before the fire. We have his insane ramblings to Meredith in the s4 flashback that's indicate that he was something like Stiles and distrustful that things would turn out well. But we DON'T actually know whether he was as bad as he is now before the fire. Surviving something like that can break a person really severely.