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Marengo man arrested for Facebook threats against food store
MARENGO — A Marengo man was arrested Wednesday on charges that he threatened on Facebook to shoot employees at Big G Food Store in Marengo, where he worked.
Casey Lauren Costigan, 30, reportedly made three Facebook accounts with the names Tessa Juliana, Tessa Juliwanna, and Tessa Juliyanna. From those accounts, he made threatening posts directed at employees and management at Big G. The threats included things like “Practicing my aiming skills to when i open fire down at the Big G!” and “Blood bath down at the great Big G!” according to a criminal complaint.
Marengo police were made aware of these threats on Sept. 21 and began an investigation, according to a news release from the police department. On Wednesday, a search warrant was executed at Costigan’s residence and he was taken into custody.
Costigan is charged with intimidation with a dangerous weapon and is being held in the Iowa County Jail.
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