A Chenango County man is arrested for making a terroristic threat against Cortland High School. Police say 19-year-old Jensen Schack made the threat via social media on Friday afternoon and was arrested on Saturday at his Plymouth residence where officers found an AR-style rifle along with ammunition. Schack was booked into jail on felony threat charges with bail set at $100,000. According to investigators Schack was a 2016 graduate of Cortland Junior Senior High School.