The Seneca Valley School District announced this afternoon that it has suspended without pay a middle school math teacher arrested Thursday for possessing child pornography. Meanwhile, the Allegheny County District attorney’s office says it learned only today from Seneca Valley that defendant 26-year-old Jonathan Brecht of Franklin Park was a teacher. As a result, the D-A’s office is continuing its investigation and says it plans to notify its counterparts in Butler County.  According to the affadavit, Brecht admitted to investigators that he posed as a woman on the dating app Skout and suggested a sexual liaison with an underage girl. The affadavit says that investigators poring over Brecht’s hard drive found three images of child pornography. Brecht was arraigned and has posted bond.