Ben Needham disappearance 21 years ago - what's your theory?

After the recent success of the Madeleine McCann thread, I saw on the news that police on Kos are re-opening the search for the toddler Ben who vanished 21 years ago, without a trace (so far).

If they do find his body under the building rubble, I can’t decide whether it’s mainly deeply sad that he was there all along and the family has suffered the agony of not knowing for all these years, or infuriatingly incompetetent on the part of the police for not having looked at the new pile of dumped rubble in the first place.

What do you think happened to him? Any Dopers out there heard some rumours or theories that haven’t hit the mainstream press?

Your links both point to the first thread.

Thanks - second link was meant to be to here - Ben Needham: Grandfather joins Kos search - BBC News

Kos = ???

Kos is a Greek island.

Greek Island, and popular UK holiday destination. Kos - Wikipedia

I’m getting the impression this case is pretty much unheard of outside the UK?