Police have vowed to continue their search for the remains of Moors Murder victim Keith Bennett.
Despite spending three days on Saddleworth Moor, no human remains have been found.
The latest search was launched after author Russell Edwards passed on images of what was described as part of a jaw bone to Greater Manchester Police.
Senior investigating officer Cheryl Hughes said: “Work to excavate the site is continuing.”
Schoolboy Keith was just 12 when he was snatched by Ian Brady and Myra Hindley in June 1964. Brady murdered him and buried him on the moors.
The owner of the land where police are digging says he promised Keith’s dying mother, Winnie, he would never stop looking for him.
Farmer Chris Crowther, 65, said: “I have always been looking ever since.”
Chris revealed he too could have fallen victim to the murderers when Brady pulled up beside him outside his school in 1963.
He added: “I ran back into school.
“Those scary eyes, they were looking straight at me.”
The couple’s other victims were Pauline Reade, 16, John Kilbride, 12, Lesley Ann Downey, 10, and Edward Evans, 17.