Who Am I?

I Walked in the shadows I saw hell I did bad things Who am I? Am I evil? Who am I? Am I angel? I walked in the light I saw a stairway to heaven I helped people I'm a good guy Who am I? Am I evil? Who am I? Am I angel? I fought with good I was expelled from paradise I mastered the seven hells And I killed Satan Who am I? Am I evil? Who am I? Am I angel?