Marathon attacks, and the manhunt
Two bombs tore through the crowd around 2:50 p.m. on Boylston Street.
David L. Ryan/Globe Staff
| April 28, 2013
Police officers with their guns drawn heard the second explosion down the street.
John Tlumacki/Globe Staff
| April 28, 2013
Police looked at blown out windows at the scene of the first explosion.
John Tlumacki/Globe Staff
| April 28, 2013
Federal agents joined Boston police at the scene outside the emergency room of the Boston Medical Center.
Jim Davis/Globe Staff
| April 28, 2013
By early Tuesday, a memorial for the victims of the attacks began to form at Boylston and Berkeley streets.
Aram Boghosian for The Boston Globe
| April 28, 2013
Investigators worked at the site of the second bomb explosion.
John Tlumacki/Globe Staff
| April 28, 2013
Marathon bomb scene pictures taken by investigators showed the remains of an explosive device.
Reuters
| April 28, 2013
Officials spoke to the media Tuesday at their command post, the Westin Copley Place hotel. Ultimately, 1,000 investigators would be based there.
Bill Greene/Globe Staff
| April 28, 2013
State Trooper Mike Currier and his dog "Chico" patrolled Terminal B at Logan Airport.
Jim Davis/Globe Staff
| April 28, 2013
Armed members of the Regional Response Team took up position at City Hall.
Suzanne Kreiter/Globe Staff
| April 28, 2013
A bomb threat on Wednesday caused the evacuation of the Moakley federal courthouse.
Barry Chin/Globe Staff
| April 28, 2013
On Thursday, FBI agents released images of the suspects. They were later identified as Tamerlan and Dzhokhar Tsarnaev, brothers who emigrated with their family from Russia in 2002.
Barry Chin/Globe Staff
| April 28, 2013
The bombing suspects together on the street, the day of the Boston Marathon attack.
Bob Leonard
| April 28, 2013
MIT Police Officer Sean Collier was shot to death late Thursday near the university in Cambridge. The alleged bombers were suspected.
Aram Boghosian for The Boston Globe
| April 28, 2013
Law enforcement agencies congregated in Watertown following a police chase.
Essdras M Suarez/Globe Staff
| April 28, 2013
Friday began with one suspect dead, a region locked down, and a massive manhunt underway.
Darren Mccollester/Getty Images
| April 28, 2013
SWAT teams conducted a house-to-house search in Watertown.
Barry Chin/Globe Staff
| April 28, 2013
State Police stopped a car at the intersection of Carver Road and Belmont Street in Watertown.
Aram Boghosian for The Boston Globe
| April 28, 2013
A wounded Dzhokhar Tsarnaev was handcuffed, bringing the nightmare of a daylong manhunt to a dramatic end.
Bureau of Alcohol, Tobacco, Firearms and Explosives
| April 28, 2013
After the arrest, police officers were cheered as heroes. One of them posed with admirers on Boston Common.
Aram Boghosian for The Boston Globe
| April 28, 2013