A man who taught journalism at Central Michigan University has pleaded guilty to possessing child pornography and also admitted that he sexually abused a child three times a week between 1995 and 2002.
Mark Ranzenberger pleaded guilty Tuesday in federal court in Bay City. He faces many years in prison.
In a plea agreement filed in court, he admits sexually abusing a child.
The investigation began when pornographic images were mistakenly displayed in class with Ranzenberger's computer. He was accused of possessing 1,000 images of child porn.
He told investigators that he thought "he had gotten rid of all that stuff."
Ranzenberger quit his job at CMU in March and also quit the Mount Pleasant Planning Commission.
He was a journalist at the Morning Sun in Mount Pleasant until 2013.
