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(Ankeny, IA) -- New details are released about the investigation into the Johnston man accused of setting off multiple pipe bombs in Ankeny.
Court documents show Chad Williams is accused of targeting his ex-girlfriend's home in the bombings.
Williams is accused of being responsible for two pipe bombs that went off earlier this year and one that didn't go off that was found by a child.
He's charged with making and possessing an explosive device and unlawful possession of a firearm.