MONTGOMERY – Upset that his girlfriend had a new boyfriend, Joshua Donovan Bower, a junior at Montgomery Junior-Senior High School, sent a personal message that read, “I’m finding my gun. I’m going to shoot up the school,” state police alleged in an affidavit.

Bower, 18, was arrested early Wednesday at his home at 69 Kevin Road, Washington Township, just outside Elimsport, and charged with one felony count of terroristic threats, police said.

The girl, also a student at the school, alerted police on Tuesday after Bower sent her messages via Facebook that he was “going to shoot up the school,” the affidavit stated.

“The victim provided (police) with screenshots of the conversation with Bower,” police said.

Police later went to Bower’s home and seized two firearms that were in his bedroom, and took him into custody.

“He didn’t remember much about his conversation with the victim. He related that he was upset with her,” Trooper Troy Hansen said in the affidavit.

The school district’s superintendent told Hansen “she would have to close the school if the suspect was not in custody due to the threat.”

Following his arraignment before District Judge William Solomon, Bower was committed to the Lycoming County Prison in lieu of $100,000 bail.

This was the second time in a month that an area high school student was arrested for allegedly making threats to harm their school.

A 16-year-old Muncy Junior-Senior High School student was removed from the school and charged with terroristic threats on Feb. 21 after authorities learned that day she allegedly told students on a bus days earlier that “I hope Muncy gets shot up. It would be funny.” She went on to say that she was going to be the shooter, borough police alleged.