A Poem Strongly Resembling Psycho

In the poem "Edward" (written anonymously), a conversation is playing out between a son and his mother. The son killed his father. There is also mentioning of him killing various animals, but those seem to be symbolic. Stil, he's going on a trip, so maybe he killed them for food. Either way, it's somewhat irrelevant. The boy killed his father. He likely killed his father mainly because his mother talked him onto it. This is hinted at in the line, "The curse of hell from me shall ye bear, Such counsels you gave to me, O." He is saying that his mother told him to kill his father, so she is also to blame for his death and will go to hell alongside her son. To guess at why the son killed his father would go outside the cone of *insert term used in class that I cannot remember here*, but it must have been a domestic issue, such as alcoholism, cheating, etc.