A 14-year-old boy accused of a deadly school shooting outside Bangkok had watched violent content online and used social media to learn about using a firearm, police say. Investigators are continuing to examine the lead-up to the attack after the boy allegedly killed his grandparents at their home, then killed additional people at his school before turning the gun on himself.

Police also say an air gun was confiscated by a teacher last year, according to multiple reports. Several outlets cite police statements that the suspect showed interest in firearms over time and that his online activity helped shape his preparation. The Japan Times frames the case as reigniting debate over firearms control in Thailand, while other outlets focus more on the investigation and the government’s response.

As the probe continues, the Thai government is also promising new school safety protocols, with reports highlighting the immediate policy discussion alongside police findings about the alleged attacker’s online learning and prior access to a weapon.