On April 2, 2012, a catastrophic mass shooting unfolded at Oikos University, a private Christian college located in Oakland, California. The assailant, identified as One Goh, had previously been a student at the institution. The attack began in the nursing classroom where Goh fatally shot seven individuals and injured three others, creating chaos and panic among the students and faculty present. Witnesses reported hearing multiple gunshots before Goh fled the scene. Shortly after the shooting, he voluntarily turned himself in to the police at a nearby supermarket, where he admitted his involvement in the incident.

The aftermath revealed that the motivations behind Goh's actions stemmed from grievances related to his educational experience at the school. In the days following the shooting, both local leaders and citizens rallied to support the victims' families. The tragedy sparked community discussions on gun legislation and mental health resources, highlighting the urgent need for better safety measures in educational institutions. As investigations continued, authorities uncovered that Goh had received treatment for mental health issues prior to the shooting.

This incident was one of several mass shootings that occurred in the United States during the early 2010s, leading to heightened media coverage and debates regarding gun violence. The ramifications of the Oikos University shooting were felt locally and nationally, pressing lawmakers to reconsider existing gun laws and safety procedures, especially in educational settings.