He's Nathan the Nobody from Creepypasta. He's introvert, but when he goes berserk, he becomes a pure sadist, tormenting and killing people in a very gruesome way. His mind is like a vinyl record that constantly repeats the messages "Save my sister" and "Kill them all" when going berserk. At times, Nathan likes to play mind games with those he stalks, after knowing their routes and habits. However, there are times he loses himself and acts on impulse, rather than taking his time.