Boston Marathon terror
Boston Marathon terror
Sam Galvin of West Roxbury added candles to a makeshift memorial on the barricades blocking off Boylston Street.
Lizzie Lee, 56, of Lynwood, Wash., who had participated in her first Boston Marathon, holds a candle and a flower at a vigil at Boston Common.
Members of the military walked along Boylston Street near the finish line of the Boston Marathon.
Emily Gillis, 7, her brother Conor, 4, of Dorchester, and their cousin Benjamin McCormick, 8, of Milton attended a vigil for blast victim Martin Richard at Garvey Park in Dorchester.
Vigil-goes held candles to honor the victims.
Investigators were combing through the aftermath of the deadly Boston Marathon terrorist attack Tuesday.
Two people stood above 755 Boylston St.
A wide view of the scene Tuesday.
The scene outside of Marathon Sports, the site of the first bomb explosion.
Police tape blocked off access to the area.
A woman looked down Boylston Street Tuesday, toward the finish line of the Boston Marathon and the site of deadly bombings a day earlier.
A Boston Police officer stood on Boylston Street on Tuesday.
Boston Police Department Commissioner Edward Davis spoke along with other local and federal officials Tuesday morning.
Senator Elizabeth Warren, Boston Mayor Thomas M. Menino, Governor Deval Patrick, and FBI special agent in charge Richard DesLauriers spoke at the press conference.
Roads around Boylston Street in Boston's Back Bay were closed and considered an active crime scene on Tuesday morning.
A military police officer checked the identification of a man on Massachusetts Avenue on Tuesday morning.
Neighbors have begun leaving flowers outside the Dorchester home of the eight-year-old killed during yesterday’s attack.
Overnight, a wave of law enforcement officials swarmed a home of a "person of interest" on Ocean Avenue in Revere.
Special police units assembled in the Boston Common on Tuesday morning.
A woman received help following the first of two explosions on Boylston Street Monday.
Just seconds after the first explosion rocked the area near the finish line, there was a second blast a few blocks away on Boylston Street.
Police officers with their guns drawn reacted to the blast.
Race volunteer Katherine Swierk (left) was reunited with her aunt Terry Days (center) and friend Jocelyn Cacio.
A victim of the first explosion near the finish line was helped on the sidewalk.
A woman knelt and prayed at the scene of the first explosion at the marathon finish line.
Boston Police examined blown-out windows at the scene of the first explosion.
A man comforted a victim near the race finish line. Across the city, people met up to seek solace amid tragedy.
Former New England Patriots lineman Joe Andruzzi carried a woman on Exeter Street after the explosions.
School buses lined both sides of Boylston Street where the street was locked down following the explosions.
Security forces blanketed Back Bay after twin blasts rocked the area around the marathon finish line.
Boston Police set up a roadblock at Gloucester and Newbury streets as officials closed down a large part of Back Bay to facilitate an investigation.