Ma Jiajue Case

In February 2004, Ma Jiajue, a student at Yunnan University in Kunming, China, murdered four fellow students—Tang Xueli, Shao Ruijie, Yang Kaihong, and Gong Bo—in their dormitory over several days. The trigger was an argument during a card game where Ma was accused of cheating, but the deeper cause lay in long-term grievances and feelings of social isolation. After killing them with a hammer, he hid the bodies in closets and fled. He was captured in Sanya, Hainan, on March 15. The case shocked the nation due to its brutality and the perpetrator's background as a rural, impoverished student. On April 24, the Kunming Intermediate People's Court convicted Ma of intentional homicide and sentenced him to death.

Ma Jiajue was found guilty of intentional homicide and sentenced to death by the Kunming Intermediate People's Court. The death sentence was carried out on June 17, 2004.

The main disputes centered on whether Ma Jiajue suffered from a mental disorder that could mitigate his criminal responsibility; psychological assessments concluded he was fully competent. There was also debate over the role of social factors such as poverty and emotional alienation in triggering the crime, and whether the university had failed in its duty of care.

The Ma Jiajue case ignited intense public debate in China about college student mental health, the psychological pressures on impoverished rural students, and campus safety. It prompted universities to strengthen psychological counseling and conflict mediation. The case became a prominent reference point in discussions of extreme campus violence and the death penalty.