Classmates say student gunman sought Thai language teacher over grade dispute

On 8 August 2026, a student gunman targeted a school in Nonthaburi, reportedly seeking out a Thai language teacher before the tragic incident. The student had previously complained to classmates about receiving a failing grade in the subject, a grade that had been assigned by the teacher the student was seeking. This teacher, referred to as "Teacher A" by classmates, was reportedly absent from school the day before the shooting.

The teacher had been responsible for giving the student a grade of zero in Thai, despite the student's generally good academic record. The student's grandmother, who had once been a teacher herself, may have been unhappy about the situation. Authorities are now investigating whether the student's academic performance and the teacher's involvement played a role in the incident.

After the shooting at Building 5, the student reportedly searched for Teacher A on the fourth floor of Building 4, only to become upset when he couldn't find the teacher. He then fired three shots into the air before the fatal incident occurred. A fellow student provided investigators with additional details, confirming that the student had indeed been looking for Teacher A. The classmate also mentioned that the student had never received a zero in Thai before and had complained about the grade to friends, stating, "I submitted all the assignments, but I don’t understand why my grade still hasn’t been changed."

Other classmates continued to provide information to police as the investigation into the incident and its potential causes progressed.