Odd Zhuo wasn't interested in prying into someone else's personal affairs. He had assumed that Father Zheng was hiding some truth related to the case; he hadn't expected Father Zheng's astonishing confession, which stupefied all the officers at the police station.
After understanding the situation, Odd Zhuo realized that Student Zheng Jingxuan's suicide was actually a tragedy triggered by a combination of factors: Student Zheng's mother, Madam He Xiulan, was a very formidable person, which caused Zheng Jingxuan to have a dread of women, and he could only use his grades to continually boost his own morale.