Highland Park, Illinois, native Rachel Brosnahan is reacting to the massacre that ended six lives during what should have been a celebratory Fourth of July parade Monday in the Chicago suburb. The Emmy-winning “Marvelous Mrs. Maisel” star, 31, took to Twitter that evening with her reaction to the deadly shooting, which left over two dozen more injured. “I grew up in Highland Park and this parade is a highlight of the year for so many families,” said Milwaukee-born Brosnahan, quote tweeting an alert about the tragedy from Moms Demand Action founder Shannon Watts. The movement is part of the Eve…
