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 Murders in the Rue Morgue removes the crime, as neither the orangutan nor its owner can be held responsible. Poe scholar Arthur Hobson Quinn speculates that later detective stories might have set up M. Le Bon, the suspect who is arrested, as appearing guilty as a red herring, though Poe chose not to. Poe wrote "The Murders in the Rue Morgue" at a time when crime was at the forefront in people's minds due to urban development. London had recently established its first professional police force and American cities were beginning to focus on scientific police work as newspapers reported murders and criminal trials. "The