An exhibition imagines the life Emmett Till was denied

If Emmett Till Lived: Freedom on American Ground, at Chicago's Museum of Contemporary Photography, asks viewers to imagine the life Till might have lived had he not been murdered in 1955. Co-curated by Sarah Elizabeth Lewis and Wheeler Parker Jr., the exhibition uses works by photographers including Gordon Parks, Carrie Mae Weems and Henri Cartier-Bresson to consider memory, possibility and racial history.