MILWAUKEE - A school leader from Milwaukee who has been accused of sexually assaulting a child is set to be in court.
Forty-six-year old Ronn Johnson managed charter schools in the area. Authorities believe he met many of his victims when he worked at the YMCA's Young Leader's Academy.
He's due in court for a preliminary hearing Wednesday.
The abuse could go back more than a decade and may involve at least 30 children.