"Even when we realized that it wasn't a kid, we weren't expecting that it would be a parent," William Chilman, the superintendent of Beal City Public Schools told "Good Morning America.""When they informed us later in the spring that they were suspecting that it possibly was her, it was a shock to all of us, I think everybody involved," Chilman added.The 42-year-old woman allegedly used software to hide her location and used several numbers and area codes, even allegedly trying to pin the origin of the messages as coming from her daughter's classmates."In doing so, it would shield her and kind of cloak her identity or her digital identity," David Barberi, an Isabella County prosecuting attorney, told "GMA."Law enforcement claims they tracked down Licari by using the IP addresses attached to the messages and that they have uncovered hundreds of pages of hateful and harassing messages."