WARRENTON, Mo. — A student allegedly stabbed two students and a teacher Thursday morning, Nov. 12, 2026, at Black Hawk Middle School in Warrenton, MO., before fleeing and being arrested within minutes, authorities said. All three victims were in stable condition, and police were investigating what led to the attack.
Officers from the Warrenton Police Department and surrounding agencies responded to the school Nov. 12, 2026, which was placed on lockdown. Police said they located the juvenile suspect shortly afterward and took the student into custody without incident. Authorities said there was no continuing threat to the community.
In a letter to parents, Superintendent Gregg Klinginsmith said the teacher let the student into the building after he arrived late to his first-hour class. The student immediately stabbed the teacher and then stabbed two students, Klinginsmith said.
One of the injured students was flown to an area hospital by helicopter, and the teacher was taken to a hospital by ambulance, according to Klinginsmith. He said his child was the student who suffered less significant injuries.
In a 2:40 p.m. Thursday update, Warrenton Police said all three victims were stable but provided no further details about their conditions.
Parents said they received a school notification reporting that several students had been stabbed and that the school was on lockdown.
Police said they were working with school administrators and other emergency response agencies to ensure safety and assist with the investigation. The department asked the public to avoid speculation and respect the privacy of the victims and their families.
Additional information will be released when doing so would not compromise the investigation or the privacy of those involved, police said.

