A 14-year-old boy killed his grandparents, then walked into his own high school and started hunting teachers room by room.
Story Snapshot
- A teenage student killed his grandparents at home, then attacked Debsirin Nonthaburi School near Bangkok.
- He targeted teachers and staff as classmates hid and fled, leaving at least seven dead and many injured.
- Officials say he used a handgun owned by his grandfather and fired dozens of rounds before killing himself.
- The death toll later rose as a 12-year-old girl died from her wounds, deepening anger and calls for change.
A quiet morning turns into a deadly hunt through classrooms
The rampage began before sunrise, in a family home outside Bangkok. Police say the 14-year-old shot and killed his grandparents, then left the house with his grandfather’s handgun and extra ammunition.
He went to Debsirin Nonthaburi School, a well-known high school in Nonthaburi province, just northwest of the capital. Witnesses say he walked the halls like he belonged there, because he did. He was a student, not some stranger in a mask.
Students describe a scene that feels like a nightmare they had already rehearsed. One girl told reporters she hid behind a desk as shots ripped through a classroom and teachers shouted for students to escape.
Another said he saw the gunman move from room to room, firing into classrooms where teachers and staff were starting the day. Video clips show police clearing rooms, guiding groups of students out with their hands raised, a drill turned brutally real.
Teachers take the bullets while children run for their lives
Early reports struggled to keep up with the chaos. Some outlets first said students and teachers were killed. As the dust settled, officials clarified that most of the dead at the school were teachers and staff, the adults who stepped between a gun and their students.
One Washington Post account said he killed five teachers at the school after killing his grandparents, for a total of seven dead at that point. That detail matters. Adults absorbed the fire so children could run.
Hospitals near the school filled fast. Bangyai Hospital told reporters they received 23 wounded, with about ten people in critical condition that first day. BBC and other outlets later said more than 30 were injured as numbers shifted with admissions from other clinics.
Among them was a 12-year-old girl, badly hurt but still alive at first. Within days, officials confirmed she died from her injuries, pushing the death toll to at least eight. That one loss turned “teachers only” into “children too,” and it hit parents around the world like a punch.
At least seven people have been killed after a teenage boy shot his grandparents and then opened fire at a school near Thailand's capital, Bangkok.
The country's prime minister, Anutin Charnvirakul, called the attack "well prepared".
🔗 https://t.co/RW3i2LM0Mx pic.twitter.com/GPdZvHA4VT
— Sky News (@SkyNews) August 7, 2026
A family gun, dozens of shots, and questions that will not go away
Police say the boy used a handgun registered to his grandfather, firing at least 26 rounds and carrying many more. Investigators recovered extra bullets at the scene, showing clear intent to fire until someone stopped him or he stopped himself. He chose the second option.
After hunting through classrooms, he turned the gun on himself and died at the school. Officials and reporters agree on that grim ending, even as some details about motive and pressure on the boy remain under investigation.
Thai leaders now face hard questions. How does a teenager get easy access to a loaded handgun at home? Why was a family weapon stored where a troubled child could reach it?
Prime Minister Anutin Charnvirakul promised tougher firearm control after the attack, reacting to public shock as the death toll rose from seven to eight and then higher in some local counts.
Live coverage chaos and the simple truth underneath
News outlets raced to cover the story, and that speed showed in messy early numbers. Some said six dead, some seven, some eight or nine as updates rolled in over several days.
One BBC live blog corrected itself, noting that two of the dead were grandparents killed at home, not at the school. This kind of confusion is common in mass shootings. Counts change as hospitals report back and families confirm who survived and who did not.
A 14-year-old survivor has described how she hid behind a desk as a deadly shooting unfolded at a school near Bangkok. The teenager says she stayed silent and waited as gunfire echoed through the building. The attack left nine people dead and more than 20 injured after a… pic.twitter.com/haV5Ur7qfQ
— Ocean News (@OceanNewsUK) August 10, 2026
Under that shifting math, the core facts do not move. A 14-year-old student killed his grandparents, carried a family handgun into his own school, hunted teachers room by room, wounded dozens, and finally killed himself.
A 12-year-old girl later died, adding one more child to the list of graves. For parents, teachers, and anyone who cares about ordered freedom, the lesson is harsh but clear: evil can come from inside the house, and safety plans must start there, long before the first siren sounds.
Sources:
reuters.com, washingtonpost.com, abcnews.com, bbc.com, youtube.com, cnn.com
