The narrator of “The Murderers in the Rue Morgue” has figured out that analysis is more than an observation, but a complete examination of every tiny detail and ruling out every single possibility before coming to a conclusion. In the end of the story the final criminal is an orangutan, and this discovery would have never been made without the narrators extreme attention to and review of minor detail. The unlikely criminal is revealed through the narrator’s thorough investigation that he shows when he says: “I knew that all apparent impossibilities must be proved to not be such in reality.” From this small quote the reader is able to withdraw a plethora of information. The emphasis on the must shows the importance the speaker places in searching carefully through every single detail of each possibility. His knowledge of analysis helps him come to the idea he states in the quote. The reader can assume that through inherent experience he has come to understand that frequently answers are searched for in the possible rather than by ruling out impossibilities. His method may be less common but it will come to help him solve the murder and find the criminal. Without the narrators cautious review of seemingly extraneous details an uncommon case may go unsolved, and cause an innocent man to be incarcerated.