article_snippet: FILE - From left, Krystle Campbell, 29, Lu Lingzi, a Boston University graduate student from China, and Martin Richard, 8, all who were killed in the bombings near the finish line of Boston Marathon .
article_snippet: Three people were killed and more than 260 were wounded when two pressure cooker bombs exploded near the marathon finish line on April 15, 2013.
article_snippet: 8-year-old Martin Richard, a Boston boy who had gone to Boston Marathon with his family that day; 23-year-old Lingzi Lu, a graduate student from China who was studying at Boston University; and 29-year-old Krystle Campbell, a 29-year-old restaurant manager.