Rob Griffin, Detective Chief Inspector, has told ITV News Central that he is confident about finding the remains of James Brodie.
A murder investigation was launched in 2007 after Brodie went missing following the shooting of a jeweller in Arnold in 2003.
More top news
It's been built to raise funds to repair the local church roof - and a mystery donor provided many of the ingredients.
Police want to speak to two men, after the victim was approached as he sat on a park bench with friends.
Mild, cloudy and damp.