Last December a man's body was discovered in the desolate landscape of Saddleworth Moor in the Peak District National Park.

There was no clue as to who the man was. Six months on, he still hasn't been identified and his body remains in a mortuary in Oldham.

The police have been mystified and shocked by what they have found

For months, those leading the investigation have been sharing their progress with Jon Manel.