Guo Ju was the older brother of Ge. As the older brother, Ju was the rightful heir of his family's farm and any money the family had when the parents died. Ge, worried about his future, and jealous of Ju, attacked his brother in the middle of the night, taking Ju's life. Ge was the only son left and clearly the rightful heir to the family fortune.
Filial piety yes or no