Gunman kills at least 6 people at Fourth of July parade outside Chicago

A mass shooting at a Fourth of July parade in a Chicago suburb Monday left at least six people dead and two dozen injured. Authorities have described a person of interest as a 22-year-old white male, with a manhunt now underway. Lynn Sweet, Washington bureau chief at the Chicago Sun-Times who was at the parade when the shots rang out, joins Amna Nawaz to discuss.

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