Why can we call the narrator of "A Rose for Emily" an unreliable narrator?

The narrator of William Faulkner's "A Rose for Emily" is unnamed and seems to represent the whole town in which Miss Emily Grierson lived (we hear that she has died at the beginning of the story). The narrator could be considered unreliable because the narrator has seemingly had little to no actual interaction with Miss Emily. The information in the story is based on rumor, speculation, and observation. It does not appear that the narrator...

The narrator of William Faulkner's "A Rose for Emily" is unnamed and seems to represent the whole town in which Miss Emily Grierson lived (we hear that she has died at the beginning of the story). The narrator could be considered unreliable because the narrator has seemingly had little to no actual interaction with Miss Emily. The information in the story is based on rumor, speculation, and observation. It does not appear that the narrator has ever had a conversation with Miss Emily, and we know the narrator (and the town at large) certainly has no real insight into Miss Emily's psychology. She is a mystery to the to town. They are interested in her and consider her like a "monument" that is an unquestioned part of the world in which they live. We know that the townspeople know very little about Emily's personal life by the fact that they find a dead body in a bed in her home after she dies. The body appears to be that of a former beau, Homer, who disappeared years before. The presumption is that she must've drugged him with the rat poison she buys in the store and kept him there, sleeping next to him for many years, as we see from the long gray hair found on the pillow next to his body. Everyone is shocked, including the reader, as we really did not know Miss Emily well and could not have predicted this bizarre behavior. The narrator relays rumors about Miss Emily throughout the story in a disorganized, non-chronological way. Ultimately, the narrator has to be considered unreliable, because he or she does not know Miss Emily personally. Through the use of the narrator, though, Faulkner is able to provide the reader with a truly surprising ending.