A 14-year-old Penncrest High School student who brought a knife to school Wednesday had written "Kill" in red ink on the wall of the boy's bathroom just two days prior, state police said.
After determining the boy was behind the writing on the wall Monday, Penncrest staff members confronted him at around 1:49 p.m. Wednesday while he was in school and found that he had a steak knife in his bookbag, police said.
The 14-year-old, who was not identified, was turned over to state police who charged him with terroristic threats and related offenses. He was then released into his father's custody.
Penncrest High is in Middletown Township and is part of the Rose Tree Media School District. The school principal did not immediately return requests for comment.