So are most people here firmly convinced the Haworth St CCTV footage shows a second person entering the car? It still looks to me more like the driver carefully lays a long coat or similar on the passenger seat. The police have unreleased CCTV of the bench area because of the grey-bearded-man (sorry to bring him up again!). That footage will presumably show any encounter between cigarette-man and Libby at the bench, and whether Libby follows him into the car or not, so I assume the police know this already. If that's not a person at the passenger side, maybe they had a creepy encounter at the bench, Libby headed off on foot to escape around 12.09, perhaps in the direction of home, and PR gets back in his car to pursue her? (But only after carefully arranging something over the passenger seat...hm, yes, I know it doesn't quite add up!)