In Zhu Chenhao's home, the murder case was still being investigated. Three bodies were found. Compared to his mother and his wife, Zhu Chenhao was considered lucky because he left a whole body behind. Moreover, the autopsy results showed that Zhu Chenhao was poisoned to death. Then... the next way of solving the case was also available.
Why were his wife and mother brutally killed, and even their bodies were destroyed? Whilst the missing parts of the body were found in the garden and the sewers, and he just sat in the car and took the poison? It was very likely that Zhu Chenhao, seemed to have lost his mind and killed his wife and mother, and finally committed suicide.