I definitely want to hear his confessions in their all glory. He is definitely the man on the bridge who leads them off the bridge. IMO
But the fact he arrives 15 mins before the girls and is walking at pace I still believe he was in contact with Libby. The question remains how was that set up.
MOO
Funny thing is, if BB had walked another 50m on to the bridge, she might have been the victim.
This is why i don't think there has to be any linkage.