I have just watched the video again of Andy Redwood, he does say he believes she is alive,
his words when asked if he believes she is still alive is "yes I do"
he then goes on a bit of a ramble that seems to make very little point or sense.
To say that, is a little mystifying for me personally, unless he has evidence to go onto a nationally televised programme and have good reason?
Good reason to my mind would not be because there was an opportunity for an abduction to have taken place, an abduction that goes long term as this one has, nearly always ends in tragedy
The report I watched he said that his belief was based on evidence, but said they did not discount she could be alive (paraphrasing there). He did say there was specific evidence that pointed to her being alive.
I know a former detective also did a review of the publicly available information and said he believed there was a very good chance she was taken by a childless couple. BUt he also said he there were other attacks on children in holiday flats which were not investigated properly which could be connected (again paraphrasing)