BOMB VICTIMS--This combination of undated file photos provided to the Associated Press shows, from left, Martin Richard, 8, Krystle Campbell, 29, and Lingzi Lu, a Boston University graduate student. Richard, Campbell and Lu were killed in the explosions at the finish line of the Boston Marathon Monday, April 15, 2013, in Boston. (AP Photo/File) BOSTON (AP) — The twin bombs at the Boston Marathon killed three people and wounded more than 170 on Monday. Here are the stories of those killed and some of the injured.