SPRINGFIELD — Police and school documents indicate a high school principal in

Springfield had sexually abused a student for years, but officials failed to uncover the abuse despite suspicions from faculty members.

The Register-Guard reports Springfield police launched an investigation in late January after a teacher alerted authorities to an overheard rumor involving Academy of Arts and Academics Principal Mike Fisher.

The Springfield School District placed Fisher on leave, and he killed himself last month.

District officials say they responded as soon as they learned about the allegations against Fisher.

Police interviewed the victim, who said the abuse began when she was 14 years old and continued into her adulthood.

A parent alerted administrators to Fisher's possible inappropriate behavior in 2007, but the report did not lead to criminal charges.