Article Photos: Officials: Suspect described plot before Miranda 3/13

FILE - This undated photo provided by Bill Richard shows his son, Martin Richard, in Boston. Martin Richard, 8, was the youngest of three people killed in the explosions at the finish line of the Boston Marathon Monday, April 15, 2013.  A private funeral Mass, followed by burial, was held with immediate family attending Tuesday, April 23, 2013, for Martin Richard. No other details were provided.(AP Photo/Bill Richard)