Teacher who changed grades now charged with forgery NBC Chicago Sara M. Glashagel, 27, of Elk Grove Village, Ill., was charged with 24 counts of forgery. By NBCChicago.com A woman on probation for changing the grades of football players at Antioch High School in Illinois -- where she was a teacher and her husband head coach -- is now facing multiple counts of forgery for allegedly scamming her new employer. Sara M. Glashagel, 27, of Elk Grove Village, has been arrested on a forgery warrant and charged with 24 counts of forgery, DeKalb police Lt. Gary Spangler said. Glashagel was working in the Roselle area as a sales representative for DeKalb-based American Marketing & Publishing, Spangler said. She allegedly sold advertising to fictitious companies or real companies she did not visit and submitted the bogus contracts to collect commission payments. For more, visit NBCChicago.com Police said she submitted some real contracts too, but the scam was uncovered in early March when a company complained that it had not purchased ads, Spangler said. Glashagel made headlines in 2011 when she was accused of changing the grades of several Antioch High School students, most of whom were athletes. She is the wife of head football coach Brian Glashagel. The former special education teacher was placed on administrative leave after her December arrest and resigned a short time later. Investigators found she gained unauthorized access to the school's computer database and changed the grades of 64 students -- including 41 football players. She pleaded guilty to misdemeanor computer tampering in February and was sentenced to a year's probation and 80 hours of community service. She also was banned form having contact with the school, but is allowed to attend football games.