325 million people. More than 265 million guns. 35,000 deaths a year. And one 227-year-old constitutional right. To tell this uniquely American story, TIME partnered with JR, the artist and photographer known in part for his murals around the world that portray communities in all their complexity. In three U.S. cities profoundly affected by guns—Dallas, St. Louis and Washington, D.C.—we invited people to share their views and describe their experiences in a search for common ground...