Board Thread:General Discussion/@comment-4839682-20130214001718/@comment-129.210.115.8-20130516073401

I figure that his being locked away is a symbolic show of how he's still trapped where he use to be: in a place he can't leave without someone else helping him free. Incidentally, this is a problem this show has a bad habit with due to its very large cast: too little send off for some of the more important characters like Sidney or Abigail.