The hooligan did not understand this mess and did not take it seriously.
However, after her husband's death, Madam Zhang took these words to heart.
The state government office showed relevant witness evidence and confirmed that they had gone to Madam Zhang's village to collect evidence but had not found any medicinal dregs. Then, they found the doctor who had "asked for directions" and confirmed that there was indeed ox bezoar in the medicinal dregs. Coupled with Liu Dagen's autopsy results, it was confirmed that Liu Dagen had died from taking ox bezoar.
Madam Zhang's confession was true.