Child pornography charges filed against a former coach at UW-Eau Claire are leading officials at the Wisconsin school to start an independent investigation. Todd Hoffner coached the Blugold football team for seven seasons. So far, local investigators say they have found no evidence on wrongdoing. Hoffner was put on administrative leave last week from his coaching position at Minnesota State-Mankato. He was arrested when IT workers found videos of the coach’s three children jumping around and dancing naked. Hoffner’s attorney has said there is no evidence the videos are criminal because they didn’t include graphic, abusive or exploitative content. A jury would have to decide whether the footage discovered on the phone was sexually explicit.