Those fake active shooter calls to schools? A similar thing happened before

Police officers respond to a call that an active shooter had reportedly injured 24 students at Chillicothe High School in Chillicothe, Ohio, in September. The call turned out to be a hoax. Similar scenes have played out at schools across the country in recent weeks. (Chillicothe Police Department/Screenshot by NPR)

Just before 3 p.m. on a sunny Friday in September, police in Chillicothe, Ohio, received a message from dispatch: an active shooter had reportedly injured 24 students at Chillicothe High School and was still on scene.

Bodycam video shows the fraught minutes that ensued. Officers rushed to the school, some entering with their rifles and pistols drawn, running breathlessly through the hallways to find the right classroom.