 This is WHIO Continuing News. Kettering, a former school choir director, pleads not guilty to child porn charges Thursday. Police say they found child pornography on 37-year-old Matthew Kohler's phone after a teen said Kohler exchanged sexual texts with him when he was a middle school student. And Kohler was the choir director at Kettering and Van Buren Middle Schools. Now, bond was kept at $50,000 and a hearing is set for July 18th.