 Investigators say they're going through security footage to figure out how it started. A now former middle school guidance counselor is accused of having an inappropriate relationship with a student. 47-year-old Louisa Melchion of New Canaan was arrested today. She's charged with sexual assault. Police say she was sexually involved with a male student while working at Nathan Hale Middle School in Norwalk. The district says it has not employed her since June 14th.