2/4/12 – The former Beaver Dam School District custodian charged with having a sexual relationship with a high school student had a cash bond set at $5000 during an Initial Appearance Friday. 27-year-old Joseph A. Posthuma has been formally charged with one felony count of Repeated Sexual Assault of the Same Child. According to the criminal complaint, High School Principal Mark DiStefano alerted police Thursday morning about the incident after learning about the encounters from the teen victim. She reportedly met Posthuma at the high school in July of 2010 and the relationship became physical in November of that year with the two having contact between 10 and 15 times over the course of 18 months. Postuma was working at Trenton Elementary at the time of his arrest. During an interview with investigators, Postuma reportedly admitted to the contact and both parties said the encounters were consensual. The victim told
investigators that Posthuma tried to break-off the relationship several times but she persisted. Authorities do not believe there are any other victims but they are still investigating. Posthuma has a preliminary hearing on the calendar February 16.