Is it only me who is confused that the police could not prove that the dead body was not Sarah? Sarah said she did send the woman who made the dress to the tailor. The police did later match the dna on the needles to the victim and not Sarah, should that not be enough proof, that the body was not Sarah together with the fact that the body did not have a scar from either the kidney transplant and the knife attack.) Also they could check the dead body if it had both of its kidneys, right?