Three Grant County men were arrested on federal explosives charges on Oct. 22 by officers with the Alcohol, Tobacco and Firearms.
Federal charges were filed against:
• Christopher Walker, of Williamstown
• Adam Autry, of Dry Ridge
• Mike Sanders of Crittenden
Chris Hankins, assistant chief of the Williamstown Police Department said the investigation began in July when a pickup truck belonging to David Suire of Dry Ridge caught fire and burned.