All classes are cancelled Wednesday in Casey County.
School officials say it's all because of a threatening letter discovered at the high school.
Investigators tell 27 NEWSFIRST the letter was found in the boy's bathroom on the first floor of Casey County High School.
Police say the letter did not contain specific dates, times or names. They did feel the threat was serious enough to cancel classes at all schools, not just the high school
Liberty Police have put up a $500 reward for information about the threat leading to an arrest.