Have been following this thread but haven't commented before.
Eve, what is it that you think we/ the public/ the media should do about your B&B friends exactly?
Yes it is terrible luck for them to be caught up in this story. Unfortunately rumours spread quickly online these days.
All they can control is how to respond to it, whether to state their case on their own website/ Twitter/ to a reporter, or whether to lie low and hope it blows over. Personally I would choose the former, but up to them if they think lying low is better.
I'm not sure what you expect people to do differently. Yes it would be better if people didn't spread rumours on circumstantial evidence, but that unfortunately is not something society can change overnight.
If they can't speak to a national reporter, why not contact their local paper, they are often short of news and the story will then be picked up by the national press or internet.