(BAD AXE) -- A 22-year old Bad Axe man faces prison time after pleading guilty, but mentally ill to three counts of 3rd degree criminal sexual conduct involving three minors. Authorities say the victims ranged in age from 13-16 years old. Ryan Wilson, who was found to have the mental capacity of a 10-year old, was originally charged with 14 counts related to sexual misconduct, but reached a deal with prosecutors. The Huron County man has admitted to the crimes, which took place at a residence in Bad Axe. Wilson's sentencing has been scheduled for July 7. The punishment carries a maximum penalty of 15-years in prison. He remains lodged in the Huron County jail.