Burke and Hare murders doctors, the Burkes and Hares were charged with murder. As part of his investigation Christison interviewed Knox, who asserted that Burke and Hare had watched poor lodging houses in Edinburgh and purchased bodies before anyone claimed them for burial. Christison thought Knox was "deficient in principle and heart", but did not think he had broken the law. Although the police were sure murder had taken place, and that at least one of the four was guilty, they were uncertain whether they could secure a conviction. Police also suspected there had been other murders committed, but the lack of bodies hampered
The Oxford Murders (film) that he had planned to escape the blast alive and had committed the other murders to present the deaths of the schoolchildren as the work of a serial killer, thus shifting blame from himself. Afterwards, Lorna and Martin prepare to leave Oxford. However, Martin realises that Seldom has been lying to him the entire time. As Lorna leaves in disgust, Martin travels to meet Seldom. He explains what he has figured out. Beth, wanting to be relieved of the responsibility of caring for her mother, had murdered the old woman as the police had initially suspected. In a panic, she