Hao Manman and Wang Qingli's case was actually not complicated.
The four people previously involved had concealed the matter too well. Moreover, the three victims had unique circumstances at birth and were not valued by their families, leading to their disappearances going unreported for many years.
After Hao Manman and Wang Qingli admitted their guilt and faced the law, the police contacted the families of the other two victims, excluding Ah Yuan.
When one of the victim's families received the call from the police, they initially refused to admit they had lost a daughter, thinking the police had found their daughter and intended to send her back.
That was a burden they had finally managed to lose; how could they possibly want to take her back!
Upon hearing their daughter had died, and was tortured to death by some wealthy people, the two families immediately changed their attitude and started sobbing uncontrollably over the phone.