On a lonely hillside moor in Northumberland, stands a replica gibbet, that once had the remains of William Winter hanging from it. It's purpose was a warning to passers by, that criminals would face the ultimate penalty. Over the centuries, people have reported seeing William's ghost, stood by a cattle grid, close to where his body was decomposing. The story has taken a number of twists and turns over the years. We visited Elsdon, and walked in the footsteps of murderer, William Winter.