 The details of the murder are sketchy . Carol was killed due to blunt trauma to her face by means of some instrument , alleged in court to have been an ice axe . She was then bound with rope , using complex knots , weighed down with rocks and lead pipes and thrown <unk> from a boat on Coniston Water . The body landed on an underwater ledge where it was later found by amateur divers . Had it been dropped a few metres further from the shore , it would have sunk to the much deeper bottom and probably never have been discovered . 
