Video posted online shows a student in a black hoodie pulling a knife and stabbing a classmate passing by on Friday.
The student in the black hoodie was waiting against the wall in a common area of Mifflin High School in Columbus, Ohio, around dismissal time on Friday.
When the student in the white hoodie approached the student, the teen in the black hoodie could be seen pulling out a knife from his waist and stabbing the student in the white hoodie.
The victim immediately flinched back and tried to run away, but his assailant chased after him in an attempt to stab him again.
By the time police arrived on the scene, they said the victim had multiple stab wounds and was treated at the scene by first responders and the school nurse.
The unidentified stabber was charged with one count of felony assault, the Columbus Dispatch reported, and was taken into Franklin County Juvenile Detention.
It remains unclear how the student smuggled the knife into the school, as the Columbus City School District had already invested more than $3million to roll out 20 Evolv Express advanced weapons detection systems at its 17 high schools.
The systems use advanced sensor technology that uses extremely low-frequency waves to induce magnetization in metal objects passing through.
Its manufacturer said the system can distinguish between weapons threats like guns, knives and metal explosives from laptops, cellphones and keys.
The district has since stated it will begin conducting additional random screenings of students’ bags before school, and will layer that measure with the use of hand-held metal detection scanners and the Evolv Express machines.
