Maybe RJ is a group, as has been suggested. The tune being whistled in thte hospital room is The Muffin Man.
http://en.wikipedia.org/wiki/The_Muffin_Man
As you can see, it's a tune to be sung while you're playing a game; the song suggests that 'many of us know his name.'
This is why I didn't accuse just one person, although I have no idea of who would be in the group.
Regarding Tyger, Tyger, the question may be, Did he who made the Lamb make thee? meaning did the god who created the son of god also make the devil? So once anyone figures out who the 'savior' figure in the show is, RJ will likely be a sibling, perhaps unknown to this person.
