The family was killed by their son. The murderer was called Huang Daniu.
Now, the four families had one thing in common.
Liu Sanniang asked him. "Has Master Wu Ju gone to investigate?"
Officer Zhang nodded. "Master Wu Ju has already investigated it. Huang Daniu is a fool. He doesn't remember anything. He's just like Huang Jinzhi. Master Wu Ju said that we have to find the rest of the people who moved out of Huanghu Village."
Huang Daniu was a fool who couldn't even take care of himself and would not provide them with useful information.
Officer Zhang continued. "The neighbors said that Huang Daniu's family moved there 20 years ago. They only had a retarded son and didn't give birth to another one in so many years. This family was quite liked by the villagers. Everyone had a good impression of them. They said that the family loved to help people and were kind-hearted. They don't know why Huang Daniu killed his parents with his own hands."
