It's Harry! The Teen-Age Creeper

Backstory:

Ever since he was little boy, Harry was Mistreated.
Now he's a Angry, Teenage Creeper. He's after everyone
who mistreated him, and his parent's Killer. (You)
Watch behind the trees. Keep yourself safe.
As he may be watching you. Watch your bathroom,
your toilet and anywhere else to do with restroom's
(He's very uh... Ya know) And yea. Oh CRAP THERE
HE ISS AH