ben needham
The digger driver may have accidentally killed Ben and later buried him
Eddie Needham wants answers 'before I go to my grave'
This building could hold the keys to the 25-year-old mystery
'It is a difficult negotiation'
The dig enters its fifth day
Burial site includes tombs believed to be between 1,500 and 2,000 years old.
Samples have been sent to a labratory in Aberdeen to determine if they are human.
Could the mystery be about to be solved?
'Everything is being carefully looked at'
Police are 'optimistic' of finding Ben after a new tip-off.