One of the striking moments in Boston’s history that longtime Boston Globe photographer Bill Brett presents in his new book, “Boston Irish,” was the April 16, 2013 vigil for Martin Richard, the 8-year-old boy who was killed in the Boston Marathon bombing. He spoke to WGBH Arts Editor and Open Studio host Jared Bowen about how 5,000 people came together in Dorchester's Garvey Park that night and how he captured the scene.

See more of Brett’s interview May 8 on Open Studio.