It is understood that the perpetrator was a senior undergraduate in the School of Politics and Public Administration of China University of Political Science and Law. After the incident, some students posted on the Internet that the suspect's girlfriend had an affair with Cheng Chunming, and the suspect was unbearable.

College students and middle school students are prone to psychological rebellion and impulse. Influenced by various factors, some students may break through this concept because of problems in the relationship between teachers and students.