There have been endless police campaigns and appeals for information about Ben, who would now be 26 - and in the UK, his face has become as famous as that other missing British toddler, Madeleine McCann
Yet this week there was news of a potential breakthrough.
A local Greek man approached police with claims this his friend, builder Konstantinos Barkas, may have accidentally killed Ben while clearing land with an excavator.
According to the BBC, Mr Barkas died of cancer last year. His widow and son have strongly denied the claims.
Police have begun a forensic dig in the area where Ben went missing , and expect the dig to take up to two weeks.