
Grove City College in Mercer County, Pennsylvania, was thrown into lockdown on Sunday, 28 September, after a chilling call claimed a gunman was inside the Henry Buhl Library. An emergency email alert went out to students and staff at 4.29 p.m., urging them to take shelter.
Police from Grove City and the Pennsylvania State Police rushed to the scene as the library was evacuated and campus buildings were placed under a shelter-in-place order, according to the Grove City College statement. After sweeping the area and reviewing security footage, investigators concluded the scare was almost certainly a computer-generated swatting hoax.