In "A Meeting in the Dark," does John murder Wamuhu on account of his parents' "sin"?

John is very concerned with what people, especially his father, think of him. His parents converted to Christianity when he was very young, and John's father always resented the fact that John was conceived out of wedlock. He blamed it on John's mother. When John himself gets a girl pregnant, he knows his father will condemn him. John tries to pay her to say someone else is the father, but she refuses. He takes her by the shoulders and shakes her, and as he does so he envisions his father's face and the disappointment of the other villagers. Without realizing it, he has killed her. In a sense, you could blame John's father for what happened because of the strict way he raised John. Ultimately, though, John is responsible for his own actions.