According to his grandparents, the toddler had been wandering in and out of the farmhouse several times in the previous hours.
Eddie and Christie first discovered Johnny was missing around 2.30pm.
Despite a long search and numerous police interviews, investigators were unable to determine the child’s fate.
That was until early this year, when a man in Denmark claimed to be Ben from Lincolnshire.
South Yorkshire police notified the press in July that the unknown man’s DNA had been checked and compared to that of the missing toddler, and they were waiting for the findings.
A spokesman of the authorities told the press at the time: “Whist South Yorkshire Police has no jurisdiction in Greece, we are keen to support Greek authorities and Ben’s family in any way we can and a senior investigating officer remains in contact with Greek counterparts.
“Our thoughts are with Ben’s family who have never given up hope of discovering the truth of what happened on 24 July 1991 and we will continue to support them in that endeavour.”
Unfortunately, after much anticipation, a spokeswoman for Ben’s family has confirmed that the DNA sample did not match the missing toddler.