the other victims were buried on saddleworth moor, they could be under the motorway, but peat moves, and while its acidic im sure i read it can also preserve bodies, i think each area is different.
Quote:
Bog bodies, which are also known as bog people, are the naturally preserved human corpses found in the sphagnum bogs in Northern Europe. Unlike most ancient human remains, bog bodies have retained their skin and internal organs due to the unusual conditions of the surrounding area. These conditions include highly acidic water, low temperature, and a lack of oxygen, combining to preserve but severely tan their skin. Despite the fact that their skin is preserved, their bones are generally not, as the acid in the peat dissolves the calcium phosphate of bone.