Police are looking for a juvenile believed to be responsible for firing BBs into a window at Philadelphia Middle School last week.

Lee Ann Fulton, curriculum coordinator for the Philadelphia Public School District, reported damage to her office window on Tuesday, Nov. 19 about 3 p.m., Police Investigator Fredesz Moore said.

"The window had been shot with two BBs," Moore said. "The window, which was double-paned, had two pecks in the first pane."

The BBs were stopped by the second pane and were recovered, he said.

A juvenile has been identified as a suspect in the case but no arrest has been made, Moore said.

"I waited at the school looking for him to return [to the scene]," he said. "We don't know why he did it."