Three managers of Tip Top Shows and the offender, Ronald McGwin, were arrested at the fair Sunday. McGwin is registered as a sex offender in Illinois, where he was convicted of sexually abusing a 13-year-old child five years ago.
Chief Tom Frank said Tip Top provided a list of employees who would be working at the fair so police could do background checks. McGwin's name was not on the list.
A call to Tip Top for comment was not immediately returned.

