Four felony charges were filed against a former weight-lifting coach at Cudahy High School Monday.  Forty-five-year-old Kurt Wojciechowski is accused of sending naked pictures of himself to a high school student.  The sexually explicit pictures were found on the 17-year-old girl’s cell phone.  Wojciechowski was arrested last Friday.  He is scheduled to make an initial court appearance this afternoon at Milwaukee County Intake Court.  He faces four felony charges of exposing a child to harmful material.  If he is convicted, he could be sentenced to 14 years in prison.