A Montgomery Junior-Senior High School student who threatened to “shoot up” the school in messaged threat to his ex-girlfriend, recently pleaded guilty to two charges of terroristic threats and was sentenced to serve three years of probation in Lycoming County Court.

Joshua D. Bower, 18, of Allenwood, was arrested in early March after threatening his ex-girlfriend in a message that read, “I’m finding my gun. I’m going to shoot up the school,” according to a state police affidavit. During the arrest at Bower’s grandparents’ house, police seized two firearms in his bedroom, police said.

Bower pleaded guilty to two counts of terroristic threats, one a misdemeanor and one a felony, in front of Judge Marc F. Lovecchio. Despite finding firearms in his room, Bower wasn’t facing possession charges.

The 11th-grade student was sentenced to 36 months of probation and 75 hours of community service for the two terroristic threats charges. He also was sentenced to serve 25 to 51 days in county prison, but received credit for 51 days he served after failing to put up the $100,000 bail.

Lovecchio specified in the sentencing that Bower is unable to play video games, use social media or have a smartphone during his probation and must write a letter to his probation officer explaining how his conduct affected the community.

“It was a recommendation by the probation office and it was a bail condition as well,” Lovecchio said in regard to Bower’s additional punishments. “It is a protective and rehabilitative measure.”

Bower told police he had made the threat because he was upset that his ex had a new boyfriend, according to the affidavit.