The decomposed remains of Susan Howells, 51, were found in a shallow grave
Dale Tarbox, 40, attacked her in upstairs room of his home in Bradford, Yorkshire
He burned her and later he got friend Keith Wadsworth to take it to caravan park
Miss Howells was then buried behind a caravan rented by Tarbox and girlfriend
Tarbox got life in prison and Wadsworth was jailed for three years, seven months