Plot Question Episode 1
River climbs a tree, finds a rope, and is visited by the dead girl, who tells him that she hanged herself, but that her boyfriend didn't hang himself, as they had planned. He has confessed to her murder. River visits him in jail, and tells him that he will be released. How does River prove to anyone that the boyfriend is innocent?
Any help on this? I enjoyed the program, but this seems like an enormous plot hole.