Pennsylvania State Police Avondale announced on May 17 that a suspect has been identified in connection with threats written on a wall at the Fred S. Engle Middle School.

On May 16, police responded to the school to examine comments written in a girls' bathroom on the first floor. The comments referenced a school shooting that was going to take place. As a precaution, there was an increased police presence at the school.

On May 17, police investigated a second incident at the school involving a written threat. A juvenile suspect was interviewed, and confessed to having written both messages.

The investigation is ongoing and no decisions regarding criminal charges have been made, but police did remind the public that making such threats could result in expulsion from school and criminal charges.