Police say a man in his early twenties is being held as a "person of interest".
He was arrested after a manhunt following the latest US mass shooting targeting the Independence Day holiday.
July Fourth Mass Shooting Leaves 6 Dead, Dozens Injured in Highland Park, IL
July Fourth Mass Shooting , Leaves 6 Dead, Dozens Injured, in Highland Park, IL.
July Fourth Mass Shooting , Leaves 6 Dead,..
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