(Eaton, OH)--A Preble County bus driver accused of grooming students is behind bars.  44-year-old James Kimball was sentenced to 90 days in jail after pleading guilty to attempt to commit an offense last month.  Eaton Police Chief Steve Hurd said that Kimball was initially charged with grooming involving a student last fall.  Kimball was a bus driver for Twin Valley South schools, but also transported Eaton students to and from certain functions.