Boston Bombing News Timeline

At least three people have been killed and more than 100 injured, some seriously, in two explosions at the finish line of the Boston Marathon.

Officials investigating the Boston Marathon bombings say they have found images of a potential suspect from surveillance camera footage.

A major police operation is under way in a town outside Boston following the fatal shooting of a police officer at the Massachusetts Institute of Technology (MIT) in Cambridge.

The surviving suspect in the Boston Marathon bombings has been charged with using a weapon of mass destruction, the US Department of Justice says.

Senior Federal Bureau of Investigation (FBI) officials are to face tough questions in Congress on Tuesday about the Boston Marathon bombing, in which three people died and scores were injured.

Thousands of mourners have held a memorial for a university police officer killed during the hunt for the Boston Marathon bombing suspects.

New York City Mayor Michael Bloomberg has said the Boston Marathon bombing suspects planned to detonate the rest of their explosives in Times Square.

http://www.bbc.co.uk/news/world-us-canada-22377255
The Boston Marathon bombings is an unusually complex case, involving two main suspects and their relatives on two continents and hundred of investigators.

The search is on for a cemetery to bury Boston bombing suspect Tamerlan Tsarnaev as protesters picket the funeral home holding his body.

Boston bombing suspect Tamerlan Tsarnaev has been buried at an undisclosed location, Massachusetts police say.

CNN) -- New developments:
-- The third victim is identified as a Chinese national who was a graduate student at Boston University. China's consulate in New York said the student's name was not made public at her family's request. When the explosions occurred, the victim was watching the race near the finish line with two other students -- one of whom is in stable condition at Boston Medical Center after two surgeries each of the past two days, while the other emerged unharmed.
http://www.cnn.com/2013/04/18/us/boston-marathon-things-we-know

(CNN) -- "Moments like these, terrible as they are, don't show our weakness; they show our strength." These words were spoken by Suffolk County, Massachusetts, District Attorney Dan Conley after Monday's terror attack in Boston.

(CNN) -- The hours since the FBI released images of the two men suspected in this week's Boston Marathon bombings have been rife with new developments in the case. Among them:

CNN) -- Days after allegedly causing death and devastation at the finish line of the Boston Marathon, two brothers "spontaneously" decided to head to a new place to unleash terror -- New York City -- that city's mayor said.

CNN's Miguel Marquez on reports that Boston bombings suspect Dzhokhar Tsarnaev has been moved to a prison hospital.

Boston (CNN) -- Here are the most recent developments in the investigation into the April 15 Boston Marathon bombings:
New developments:
-- The bombs used in the Boston Marathon attack were built in the apartment that suspect Tamerlan Tsarnaev shared with his wife and child, a U.S. law enforcement official with first-hand knowledge of the investigation told CNN on Thursday. The official was not authorized to release the information.

(CNN) -- For nearly two weeks, Tamerlan Tsarnaev's body lay unclaimed at the Boston medical examiner's office. A funeral home now has the remains and a quest is underway to find him a resting place in Massachusetts.

(CNN) -- Boston Marathon bombing victims were collateral damage in a strike meant as payback for U.S. wars in Muslim lands, the surviving suspect wrote in a message scribbled on the boat where he was found hiding, a law enforcement source told CNN Thursday.

(CNN) -- Boston Marathon bombing victims were collateral damage in a strike meant as payback for U.S. wars in Muslim lands, the surviving suspect wrote in a message scribbled on the boat where he was found hiding, a law enforcement source told CNN Thursday.

CNN) -- A federal magistrate has refused a request from lawyers for the surviving Boston Marathon bombing suspect that would allow them to take "current and periodic" photographs of him, which would have been kept from the government.

(CNN) -- After twin blasts shook Boston -- killing three and wounding more than 260 others -- investigators sprung into action looking for those responsible.

BOSTON — The surviving suspect in the Boston Marathon bombings remained under heavy guard in a hospital Saturday, with an injury to his neck complicating how he would be interrogated and held for trial.

BOSTON – The nation stopped to remember the tragic events that began a week ago with twin explosions at the finish line of the Boston Marathon as prosecutors charged a suspect in his hospital room with using a weapon of mass destruction in the attack

WASHINGTON -- Congressional leaders briefed on the FBI’s investigation of the Boston Marathon bombing said Sunday it was still possible that the two Tsarnaev brothers received help and support from others in building the bombs and carrying out the lethal attack.

WASHINGTON — The FBI has found female DNA on at least one of the two homemade bombs detonated during the Boston Marathon on April 15, complicating the task of identifying how and where the deadly devices were constructed.

WASHINGTON – The CIA, Justice Department and Homeland Security Department have launched a high level internal review of whether intelligence was mishandled prior to the bombings of the Boston Marathon, officials said.

On Thursday, April 18, when the images of Tsarnaev and his brother Tamerlan were spread all over the news, his fellow students at the University of Massachusetts at Dartmouth began calling one another, the FBI says in a new affidavit.
http://www.latimes.com/news/nation/nationnow/la-na-nn-boston-bombing-three-suspects-20130501,0,6833938.story

The body of Tamerlan Tsarnaev, who died after a gun battle with police, has found its final resting place, ending more than a week of confusion and anger about how to deal with the remains of the suspected Boston Marathon bomber.
Police in Worcester, Mass., where the body has been in a funeral home, announced that the issue of where the body should be buried has been resolved.

WASHINGTON -- Five days before two bombs tore through crowds at the Boston Marathon, an intelligence report identified the finish line of the race as an "area of increased vulnerability" and warned Boston police that extremists may use "small scale bombings" to attack spectators and runners at the event.

WASHINGTON — The head of the FBI said Thursday that there were lapses in tracking accused Boston bomberTamerlan Tsarnaev's visit to Russia last year, saying that U.S. security officials failed to act on "text" alerts to a U.S. Customs agent about his trip.