WEBVTT A VICIOUS THREAT REFERENCING DEADLY SCHOOL MASSACRES, FORCING A LOCAL HIGH SCHOOL TO CANCEL CLASSES TODAY. PITTSBURGH'S ... faculty members at Seton-La Salle High School.

A Pittsburgh ... said Seton-LaSalle officials received the anonymous threat early Wednesday. It contained threats to shoot students and staff and referenced attacks at Columbine High School ...

PITTSBURGH (KDKA) -- Parents of Seton-La Salle students met with the school ... made mention of incidents that occurred at Columbine High School and Sandy Hook Elementary School.