Why Did Montresor Decide To Kill Fortunato

Why does Montresor kill Fortunato in "The Cask of Amontillado"?

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Edgar Allan Poe creates the portrait of a man obsessed. As a first-person narrator, Montresor aims to get the reader he directly addresses on his side by stating that this reader knows "the nature of my soul." This implies as well that he assumes the addressee will know at least some of what constitute the "thousand injuries" that Fortunato has inflicted on him. Montresor does not state, and perhaps believes that the reader already knows, what the territory of "insult" is into which Fortunato has crossed.

We never learn exactly what tipped Montresor over the edge from resentment to premeditated murder. While we do learn by the end that he achieved his goal of revenge, he phrases his intentions as reactions to the other man's offenses. The end result must be complete destruction: "immolation."

By leaving the exact "wrong" unstated, Poe encourages his reader to think of insults they have born and thus to empathize with the wronged man, rather than simply judge him as a cold-blooded killer.

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Montressor claims that the "thousand injuries" he has sustained from Fortunato have created his animosity toward the other man, but that he has patiently endured these insults. When Fortunato ventures into insulting behavior, Montressor swears revenge.  The reader never finds out exactly what Fortunato has done, and it's possible, due to Poe's penchant for unreliable narrators, that Montressor is not being entirely honest in his confession, or that the slight is entirely in Montressor's imagination. Whatever Fortunato has done, Montressor's sense of family honor demands that he avenge himself. His family crest perfectly illustrates this, as it is a serpent with its fangs buried in the heel of the very foot which crushes it, with the Latin motto, "nemo me impune lacessit": no one may attack me with impunity. In other words, no one insults me and gets away with it!

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You know, it never really says.  In "The Cask of Amontillado" all we know is that Montresor has some sort of gripe with Fortunato and wants to see the man dead.  Not only that, he wants to see him dead bad enough that he invents an elaborate scenario in which to entomb him behind a wall forever.

The thousand injuries of Fortunato I had borne as I best could, but when he ventured upon insult I vowed revenge.

We don't know what the insult was that made Montresor so angry, but oddly enough, it doesn't really matter.  The heart of the story is that this nobleman was so insulted by it that he wants to kill someone he considers a friend. And to entomb him behind a wall, where he will slowly starve to death and degenerate into madness?  What could a friend (or an enemy, for that matter) do to you that would make you act in such a way?

Fortunato doesn't seem to suspect anything, either, willingly going into the catacombs with him.  So whatever Fortunato does, he must not realize he has done it, as he does not seem suspicious that foul play is afoot.

Poe seems to do this a lot...think of "Tell Tale Heart."  The only reason given for why the guy in that story wants to kill the old man is because he has a gross eye.  Otherwise, he likes the old man.  My point is that Poe seems less concerned with the specifics causing a lot of his stories and more concerned with a dramatic outcome.

Here's kind of a cool picture from the scene: HERE.

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