Yes but this observer (MS?) would witness the eye contact between MS and a male, followed by text messages, followed by her leaving. If he had already bought her a drink, maybe he felt a bit used and abused whereas she might not have wanted to refuse his offer of a drink out of politeness. The lift arrangement was his way of connecting with her in the pub. All this said, I don't believe he was involved.
I’m curious about what the atmosphere was like in the NH in the weeks and months after March ‘09 and whether some of those often mentioned in press coverage of this case continued to go there.