What evidence suggests that Montresor has committed the perfect crime? "The Cask of Amontillado" by Edgar Allan PoeAll i need is a simple answer,...

In my opinion, the clearest evidence that Montresor has
committed the perfect crime is that he has not been prosecuted for the crime of killing
Fortunato.  The story is narrated by Montresor, but not the Montresor of the time of the
story.  Instead, the Montresor who narrates the story is looking back at the time that
he killed Fortunato.  It is decades later when he is telling the story.  If he has not
been caught and punished after all these years, he must have committed the perfect
crime.

In the last lines of the story, Montresor reveals
that he has gotten away with the crime for something like 50
years:

Against
the new masonry I re-erected the old rampart of bones. For the half of a century no
mortal has disturbed them. IN PACE
REQUIESCAT!