Thai police have revealed new details about the 14-year-old accused in Friday’s deadly school shooting, saying he had watched violent content online and studied how to use firearms for one to two years. The disclosures came as the country continued to reel from the attack, only for another shooting to occur on Monday when a gunman opened fire inside a local government office in the same province.

School Shooter Investigation Update

Police said the teenager, who killed his grandparents at home before opening fire at Debsirin Nonthaburi School and then turning the gun on himself, had shown a sustained interest in firearms.

Deputy Commissioner of Provincial Police Region 1, Atthapol Anusit, told reporters on Sunday that investigators had examined the boy’s personal computer and found he had consumed social media content involving violence. He had also used online platforms to learn how to handle a firearm.

“According to witness interviews, the perpetrator had begun showing interest in studying the use of firearms for some time, about one to two years.” Deputy Commissioner Atthapol Anusit, Provincial Police Region 1

Police have interviewed at least 17 witnesses so far as the investigation continues.

Authorities noted there is currently no evidence that the boy had practised live shooting. He had lived with his grandparents for 12 years following his parents’ separation. His mother has said she saw no clear warning signs.

The Ministry of Education announced it will develop new school safety protocols over the next three months. These include mental health screenings, emergency response drills, anti-bullying measures, and stricter checks to prevent weapons from entering campuses.

New Shooting at Government Office

On Monday, just days after the school attack, a gunman opened fire inside a local government office on the outskirts of Bangkok in Nonthaburi province.

Provincial Police Commander Major General Dejrapee Kongdee said the suspect, identified as a former lawmaker, shot at a senior provincial official and his driver. Both victims were wounded and taken to hospital for treatment. The alleged shooter was arrested at the scene.

The incident has further intensified public debate over gun control in Thailand, which has one of the highest rates of civilian firearm ownership in Southeast Asia.

Broader Context

Nine people died in the Friday school shooting, including a 12-year-old girl who succumbed to her injuries on Saturday. More than 20 others were wounded. Students returned to classrooms on Monday under heightened security, with some schools introducing metal detectors and additional checks.

Prime Minister Anutin Charnvirakul has reiterated the government’s intention to tighten firearms regulations in response to the school attack.