The former owner of a chiropractic clinic in Bradley pleaded guilty Monday in Federal Court in Urbana to charges of wire fraud and failure to file tax returns. Prosecutors say 72 year old Joseph Mayotte of Kankakee billed Blue Cross-Blue Shield for more than 250,000 dollars in services that were not provided. Mayotte used the money for his personal benefit. He also admitted Monday to failing to file federal tax returns for the years 2011 through 2014. The clinic’s former office manager pleaded guilty to the same charges in November. Neither has been sentenced.