When Qi Changye came to interrogate the nanny, he specifically made the trip.
However, he arrived a little later than expected and by the time he got there, the main part of the interrogation was essentially over.
Without waiting for Qi Changye to say anything, Tao Lu called Liu Cheng over to report in person.
Liu Cheng sat upright, hands on his legs, and said, "We found the aconite the nanny, Li Shuyi, had disposed of in the green belt near Zhou Xiangyang's home through the police dog. After showing it to her, Li Shuyi confessed to everything..."
"What was the motive for the crime?" asked Tao Lu.
