SPOKANE, Wash. (AP) — An Eastern Washington man will spend two years in federal prison for building a working red, white and blue cannon in his garage. The Spokesman Review reports 63-year-old Kent Kimberling of Garfield has been in Spokane County Jail custody since January 2020. In August 2019, investigators with the Bureau of Alcohol, Tobacco & Firearms discovered the unregistered destructive device. Kimberling pleaded guilty in March to possession of an unregistered destructive device. Investigators went to Kimberling’s home to conduct a welfare check and found the cannon, which was found to be operational. The bore of the cannon was measured to be 1 ¼ inches, greater than the ½ inch bore permissible under federal law.