FORT PIERCE — A 39-year-old Vero Beach man was arrested Saturday after being found with a short-barrel assault rifle outside a gun show at the Havert L. Fenn Center in Fort Pierce, according to a recently released arrest affidavit and a sheriff’s official.

James Mathew Kennedy, of the 1000 block of 27th Avenue Southwest, took the AR15-type rifle into the gun show, where he went to buy parts, officials said. They gave this account: The rifle had a barrel length about three inches shorter than is allowed without first going through a lengthy federal approval process.
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