Three people were stabbed at Black Hawk Middle School in Warrenton on Thursday morning, and the school went into lockdown within minutes. A student ran off after stabbing a teacher and then two other students inside a classroom around 7:55 a.m., and police later arrested the suspect quickly.
The scene turned a routine school morning into an emergency that spread fast through Warren County R-III. One student was flown to a St. Louis children’s hospital, the teacher was taken by ambulance, and both were in serious condition at the time of transport. Dr. Gregg Klinginsmith said the district would resume classes Friday and move quickly to counseling for families rather than let the event linger through the weekend.
The school did not have metal detectors, Klinginsmith said, a detail that will sharpen questions about how the knife got inside and what, if anything, could have stopped the attack before it started. Police said the blade was 4 to 5 inches long. That makes the assault starkly simple: the weapon was small enough to be concealed, and the attack was fast enough that the school had little chance to react once it began.
By early afternoon, the conditions had shifted. Just before 1:30 p.m., police said the student at Cardinal Glennon was stable, and before 2 p.m. the teacher had been discharged from the hospital. A second student had superficial wounds, and Klinginsmith said that student was his son. He said the boy had been targeted in the chest but dodged the stab, a detail that underscores how close the classroom came to becoming a far worse scene.
The district dismissed all Warren County R-III schools around 12:40 p.m. and canceled all Black Hawk Middle School sports for Thursday. That response reflects the pressure school leaders were under to restore order after the arrest, but it also leaves open the larger question of prevention. Warren County R-III requested Behavior Threat Assessment and Management Training last spring, and First Alert 4 reported it was still working to determine whether the district had completed it or whether the state was arranging it.
Fred Wellman, the Republican nominee in MO-02, said he had just been made aware of the incident and called any school violence shocking. For the families in Warrenton, the immediate answer was already clear: the suspect was in custody, classes were set to resume Friday, and the school day had ended with three people stabbed and one of them being Klinginsmith’s son.
