For Day 5 updates, please see here.

The daunting task of sifting through thousands of images of the Boston Marathon bombing site in search of a culprit suddenly telescoped to a single video from a Lord & Taylor security camera Wednesday. The second full day of the investigation into the attack that killed three people and injured at least 176 brought jitters, rumors and at least the hope that investigators had made important progress, though Massachusetts Gov. Deval L. Patrick (D) said that while the probe is “making some progress . . . it’s going to be slow, it’s going to be methodical.”

Read below for full developments through Thursday evening.

Day 1 updates | Day 2 updates | Day 3 updates


What we know so far

As the third day of investigations into the Boston Marathon bombings stretches into the evening, here is what we know so far:

FBI: ‘Somebody… knows these individuals’

The public’s help will be critical in helping the FBI crack the case, said Special Agent Richard DesLauriers at a media briefing late Thursday afternoon where he released photos and video of two “suspects.”

The images and video can be viewed here.

“Somebody out there knows these individuals, as friends, neighbors, co-workers or family members,” he said. “Though it may be difficult, the nation is counting on those with information to come forward and provide it to us.”

He said all tips would be kept confidential. People can call 1-800-CALLFBI or visit

“We consider them to be armed and dangerous,” DesLauriers said. “No one should approach them. Do not take any action on your own.”

He also said that other photos of reputed suspects “should not be considered credible.”

The imagery includes footage of the suspect in the white cap setting down a back pack before the Forum restaurant near the finish line, and he urged anyone who was at the Forum to contact the FBI.

The two are seen walking together on Boylston Street toward the finish line, and the white-capped man is later seen walking away on Boylston.

President Obama visits Massachusetts General Hospital

The White House posted this photo of President Obama’s visit to Massachusetts General Hospital to Flickr on Thursday:

(Official White House Photo by Pete Souza)


Photos of FBI persons of interest

The FBI has released surveillance photos and videos of two persons of interest in the case, whom they are calling “Suspect 1” and “Suspect 2.” Suspect 2, in the white hat, is the one the FBI believes placed a package.

Suspect 1 (FBI)

Suspect 2 (FBI)

(video via)

Watch: FBI news conference

The FBI just held a news conference in Boston where they identified two suspects in the Boston bombings. Watch it here:

FBI: ‘No additional imminent danger’

The brief news conference has just concluded in Boston. The last question posed to the FBI agent in charge of the investigation was if any other danger remains.

“There’s no additional imminent danger that we are aware of right now,” FBI Special Agent Richard DesLauriers said.

FBI: These are the two main suspects

When asked if the two suspects shown in photographs at the news conference are the only suspects, FBI Special Agent Richard DesLauriers said that at this moment, these are the two main people of interest to the FBI.

FBI: Finding suspects ‘highest priority’

FBI Special Agent Richard DesLauriers stressed the importance of locating the two suspects.

“Identifying and locating those responsible is now our highest priority,” he said.

FBI asks public for help, tips

FBI Special Agent Richard DesLauriers said that the public will be essential in identifying the suspects.

“Somebody out there knows these individuals,” he said.

He warned that these suspects should be considered armed and extremely dangerous, and stressed that no one “should take any action” on their own.

“If you see these men, contact law enforcement,” he said.

Anyone with information should call 1-800-225-5324. All calls will be kept confidential, he said.

People can also visit

FBI: Photos will be posted online

The FBI is releasing photos of two suspects from the bombing in Boston. FBI Special Agent Richard DesLauriers, speaking at a news conference, said the photos would be posted on “for the public and the media to use, review and publicize.”

FBI: Two suspects identified

The FBI has identified two suspects in the bombing investigation.

“Within the last day or so…we initially developed a single person of interest,” FBI Special Agent Richard DesLauriers.

It was unclear if that person was working alone or with others, DesLauriers said.

But working with other law enforcement officials, they identified a second suspect, he said.

FBI will also release video

The FBI will also be releasing video and putting it on the FBI Web site, my colleague Sari Horwitz reports.

BU establishes fund for Lu Lingzi

Boston University has established a memorial scholarship in honor of Lu Lingzi, the graduate student killed in the marathon attacks. According to BU, the school’s board of trustees has already pledged $560,000 to the fund and will crowdsource contributions from other sources as well.

Since the school confirmed Lu’s death Wednesday, people in both the U.S. and China have flooded social media with remembrances and asked for ways to help. A BU press release said the fund will be established “in accordance with the preferences of the Lu family,” who will arrive in Boston this week.

The donation page for the scholarship fund calls Lu “an optimist with a powerful work ethic” and “a beloved member of the BU community.”

Watch: FBI news conference

The FBI is holding a news conference at 5 p.m. in Boston. We will have live updates here, but you can watch it below when it begins:

Student protests his innocence

The cover of today's New York Post The cover of today’s New York Post

One of the men identified in media reports as a “person of interest” in the Boston marathon bombings is protesting his innocence today.

The man, identified by ABC News as Salah Barhoun, a Boston-area high school student and medium-distance runner, posted a public Facebook message last night saying he went to the courthouse to talk to authorities.

The posts have since been deleted or made private, but screenshots are circulating on Reddit and other sites.

In an interview with ABC News, Barhoun said he was innocent and that seeing his name in the media was “the worst feeling that I can possibly feel … I’m only 17.”

Several media outlets had identified Barhoun and a nearby man, also wearing athletic clothes and carrying a backpack, as “persons of interest” in the case.

“Feds seek these two pictured at Boston Marathon,” read the cover of today’s New York Post, which ran a large picture of the two under the headline “BAG MEN.”

The New York Post has received considerable criticism for the story, but has not retracted it. In a statement, editor in chief Col Allen said, “The image was emailed to law enforcement agencies yesterday afternoon seeking information about these men, as our story reported.”

RELATED: New York Post builds bridge between rumor and media

FBI to release photos

Law enforcement sources tell The Washington Post’s Sari Horwitz that the FBI will release photos related to the bombing.

These photos will be released at the FBI news conference scheduled for 5 p.m., Horwitz reports.

Crowdsourced donations for injured newlyweds

Among those injured by the Boston Marathon bombings are a newlywed couple who both suffered leg amputations below the knee. The Associated Press has the story of Patrick and Jessica Downes:

More than 4,400 people have donated more than $246,000 to the couple through a page hosted by

The families say they don’t want the couple to worry about paying for prosthetics and modifications to their home during the recovery process.

Thirty-year-old Patrick and 32-year-old Jessica are in stable condition and recovering from surgery. They were married in Boston in August.

Fenway’s message to Bostonians

FBI press conference set for 5 p.m.

Forensic work continued atop the Lord & Taylor store across the street from where one of the marathon bombs exploded. (Darren McCollester / Getty Images)

The FBI will hold a 5 p.m. press conference on the Boston Marathon bombings investigation.


The BPD adds that participants will include Richard DesLauriers, the special agent in charge of the FBI’s Boston field office; U.S. Attorney Carmen Ortiz; and FBI Joint Terrorism Task Force law-enforcement partners.

Boston radio stations to go silent for 1 minute

(Winslow Townson / AP)

Boston radio stations intend to stop broadcasting for one minute at 2:50 p.m. next Monday, observing the moment at which the Boston Marathon bombings occurred.

Stations owned by CBS Radio, Clear Channel Media and Entertainment, Entercom and Greater Media will participate in the tribute, according to the National Association of Broadcasters (via the Associated Press).

Obama stops at Mass General Hospital

President Obama visited with marathon volunteers at the prayer service. (Susan Walsh / AP)

After speaking at the interfaith prayer service at the Cathedral of the Holy Cross, President Obama has made a stop before leaving Boston. He’s visiting victims and family at a hospital.


WATCH: Obama speaks at Boston interfaith service

President Obama spoke at the interfaith service in Boston on Thursday, praising the resolve of the city’s doctors, nurses, firefighters and citizens.

“Every one of us stands with you,” he said.

He also vowed that those responsible will be found and held accountable.

“Yes, we will find you,” he said. “And yes, you will face justice.”

His full remarks are embedded below. You can also read a transcript of his remarks here.

BU colleague recalls Lu Lingzi

Lu Zhang, 24, a Boston University statistics graduate student from Beijing, often studied with Lu Lingzi, the Chinese 23-year-old killed Monday near the finish line of the marathon. Lu Zhang said that Lu Lingzi was in her first year of studies at Boston and was enthusiastic about living in the United States.

“She loved it here,” Lu Zhang said. “She was really hard working and involved with everything. She was really sweet.”

Lu Zhang said that Lu Lingzi went to watch the marathon runners with two other girlfriends. One of them escaped unscathed while the other woman remained in the hospital recovering from multiple surgeries to repair her wounded abdomen.

Lu Lingzi had first come to the United States as an exchange student in California a few years ago, Lu Zhang said, and she had fit in well in Boston. She had an apartment and a pet chihuahua, Jing Jing.

“She had a lot of friends,” Lu Zhang said. “She liked going shopping with friends and going to the movies. She loved ice cream. She would sometimes eat a whole packet by herself. She liked Ben and Jerry’s and all the weird flavors.”

Lu Zhang said that Lu Lingzi was dedicated to her graduate work but had also opted to take piano lessons. During spring Break, Lu Lingzi had traveled to Orlando to explore Disney World and Universal Studios, Lu Zhang said.

“She was always energetic. When we were preparing for exams we were all really stressed,” Lu Zhang said. “We were studying together in the study lounge and she said, ‘Oh don’t worry about it. You’ll do fine.'”

Lu Zhang said that the last time she saw Lu Lingzi was Sunday. Zhang said: “She was wearing a really pretty dress.”

President Obama mentioned Lu Lingzi in his address today at an interfaith service and said his prayers were with her family.

Correction: An earlier version of this post’s headline incorrectly identified Lu Lingzi as Lu Zhang.

Obama: ‘Every one of us stands with you’

President Obama. (Spencer Platt / Getty Images)

President Obama opened his remarks at the interfaith prayer service by quoting a poem: “Boston is the perfect state of grace.”

“Today,” he noted, “we come together to reaffirm that state of grace.”

The attack on the Boston Marathon, on Patriots Day, was personal.

“Every one of us has been touched by this attack on your beloved city,” he said. “Every one of us stands with you. … Boston may be your hometown, but we claim it, too.”

(C.J. Gunther / EPA)

Obama, of course, attended law school in Boston and returned to the “personal” nature of the attacks. He drew a laugh when he said: “So whether folks come here to Boston for just a day, or they stay here for years, they leave with a piece of this town tucked firmly into their hearts. So Boston’s your hometown, but we claim it a little bit, too. I know this, I know this because there’s a piece of Boston in me. You welcomed me as a young law student across the river — welcomed Michelle, too. You welcomed me, you welcomed me during a convention when I was still a state senator and very few people could pronounce my name right.”

Among the lines that drew the biggest applause of the day? “You will,” Obama tells the gathering, “run again.”

He also delivered a message to the perpetrators of the bombing: “Yes, we will find you. Yes, you will face justice.”

To those in the audience, he spoke of the 118th running of the Boston Marathon, to be held April 21, 2014, and of Bill Iffrig, the 78-year-old runner who finished the race after being knocked to his feet by the blast: “…[W]e may be momentarily knocked off our feet, but we’ll pick ourselves up. We’ll keep going. We will finish the race.”

Transcript: President Obama in Boston

Deval Patrick: ‘Massachusetts invented America’

Gov. Deval Patrick (right) with President and Mrs. Obama. (Spencer Platt / Getty Images)

Massachusetts Gov. Deval Patrick (D) drew the largest applause so far at the interfaith prayer service at the Cathedral of the Holy Cross.

His remark?

“Massachusetts invented America.

He also invoked the words of Dr. Martin Luther King: “Darkness cannot drive out darkness. Only light can do that.”

FBI: No decision yet on photos

There have been reports that authorities are planning to release images of suspects in the bombings, but law enforcement officials tell The Washington Post’s Sari Horwitz that no decision has been made.

“We haven’t made any decision on releasing photos,” FBI Supervisory Agent Jason Pack told Horwitz.

The search for clues continues

(Julio Cortez / AP)

As mourners honor Boston Marathon victims at the Cathedral of the Holy Cross, forensic work continues at the finish line area, where the bombs exploded Monday.

(Julio Cortez / AP)

Boston mayor: ‘Nothing will take us down’

An impromptu memorial along the marathon route. (Don Emmert / Getty Images)

Boston Mayor Thomas Menino, famous for his inability to get the names of his city’s sports stars right and often denigrated as Mayor Mumbles, struck just the right, defiant tone, his message coming through clearly in his thick Boston accent as he told mourners at the Cathedral of the Holy Cross:

“I have never loved [our city] and its people more than I do today.”

Menino, who is using a wheelchair as he recovers from leg surgery, grimaced as he stood to deliver his emotional address.

“Nothing will take us down,” he said, “because we take care of each other.”

Among those attending the service: Mitt Romney and his son, Tagg; Rep. Joe Kennedy; Theresa Heinz Kerry, wife of the secretary of state and former Massachusetts senator; Rep. Niki Tsongas; Rep. James McGovern’ Massachusetts Attorney General Martha Coakley; and actor Bradley Cooper.


Obama to speak of Bostonians’ strength

(Kevin Lamarque / Reuters)

After meeting with Boston Marathon bombing victims, families, and first responders, President Obama is expected to speak of the inner strength of Bostonians at a prayer service this morning at the Cathedral of the Holy Cross in Boston.

“You can expect that he will, in his remarks, offer his condolences on behalf of the first lady and his family,” spokesman Josh Earnest said on Air Force One during the flight from Washington (via pool report). “But also on behalf of the American people, to the people of Boston. At the same time he will reiterate his confidence in the resilience in the people of Boston and remind the American people that the way the people of Boston responded to this terror attacks represents who we are as a country.”

As for reports that authorities would be releasing photos of two suspects, the spokesman said: “I would just reiterate something that the FBI mentioned yesterday, is to urge caution as we’re reporting out some of these facts. There are often unintended consequences of these erroneous reports so I would just encourage caution.”

Blast victim, 5, ‘gonna be okay’

(Jared Wickerham / Getty Images) (Jared Wickerham / Getty Images)

A 5-year-old boy among those injured in Boston’s Marathon blasts is out of critical condition, the Boston Medical Center reports.

“I think he’s gonna be okay, and that’s great,” Peter Burke, the center’s chief of trauma services, told reporters Thursday morning (via the Boston Globe).

The boy, among 16 still at the hospital, suffered pulmonary injuries and wounds to his extremities, Burke said.

Live stream of the interfaith service

The interfaith service for victims of the Boston Marathon bombings will begin at 11 a.m. at the Cathedral of the Holy Cross in Boston. President Obama will speak at the service.

Hazmat suits at the finish line

(Vernon Loeb/The Washington Post) (Vernon Loeb/The Washington Post)

At the still barricaded Boylston Street, bouquets of flowers, hand-painted banners and American flags adorn the metal barriers. The actual finish line, still visible and part of the crime scene, is 600 yards in the distance. Crime scene analysts in white Hazmat suits can be seen in the street working where the two bombs went off.

Boston Athletic Association offers help

The Boston Athletic Association sent a letter this morning to runners and volunteers who participated in the Boston Marathon, offering help for those feeling “anxiety, anger or fear” after the attack.

The letter suggested that anyone seeking aid now should call the Federal Disaster Distress Helpline (1-800-985-5990). This is a free, confidential and multilingual support service.

A mental health team from the U.S. Public Health Service is going to be in Boston to help people in individual and group settings, according to the letter.

People in need of help, resources or additional information can go to this page.

Romney arrives for service

Boston police prepare for the prayer service. (Jessica Rinaldi / Reuters)

Mitt Romney, a former Massachusetts governor, has arrived for the prayer service at the Cathedral of the Holy Cross.

Romney walked up a side aisle and slipped into a pew near the front of the left side of the cathedral. He was accompanied by his son Tagg, The Post’s David Montgomery reports.

Mourners file in for prayer service

A line formed early this morning at Boston’s Cathedral of the Holy Cross. (Jessica Rinaldi / Reuters)

Early this morning, people were seated in the Cathedral of the Holy Cross for the 11 a.m. interfaith prayer service at which President Obama will speak. A group of marathon runners and armed service members were escorted to the front of the line, according to the Boston Globe, and others were giving up their tickets so that they could get in.

After the service, President Obama is expected to meet with victims, their families and first responders.




The makeup of the bombs

Investigators looking into the explosions at the Boston Marathon are focusing on a video feed that may show a potential suspect. But they are also still gathering clues about the makeup of the bombs.

This graphic shows some information about the bombs, how they may have been concealed and more:

Sources: “Practical Bomb Scene Investigation,” by James T. Thurman; FBI;; Homeland Security Department. Patterson Clark and Alberto Cuadra/The Washington Post. Published on April 17, 2013, 9:48 p.m.

Mass General update on victims

(Carolyn Kaster / AP)

A quick update this morning from Massachusetts General Hospital on the conditions of victims of the marathon bombings:


Bible readings for the memorial

The two Bible readings listed for today’s memorial service in Boston are from Psalms and the Gospel of Matthew:

The Old Testament reading is the third verse of Psalms 147. Here’s the Revised Standard Version rendering:

He heals the brokenhearted, and binds up their wounds

Here’s the reading from Matthew 5, verses 1-12, in the King James version:

And seeing the multitudes, he went up into a mountain: and when he was set, his disciples came unto him:

And he opened his mouth, and taught them, saying,

Blessed are the poor in spirit: for theirs is the kingdom of heaven.

Blessed are they that mourn: for they shall be comforted.

Blessed are the meek: for they shall inherit the earth.

Blessed are they which do hunger and thirst after righteousness: for they shall be filled.

Blessed are the merciful: for they shall obtain mercy.

Blessed are the pure in heart: for they shall see God.

Blessed are the peacemakers: for they shall be called the children of God.

Blessed are they which are persecuted for righteousness’ sake: for theirs is the kingdom of heaven.

Blessed are ye, when men shall revile you, and persecute you, and shall say all manner of evil against you falsely, for my sake.

Rejoice, and be exceeding glad: for great is your reward in heaven: for so persecuted they the prophets which were before you.


Mitt Romney to attend service

President and Mrs. Obama prepare to board Marine One on the White House’s South Lawn. (Mandel Ngan / Getty Images)

Mitt Romney plans to attend the interfaith “service of healing” this morning dedicated to those injured or killed in the Boston Marathon bombings.

President Obama, his opponent in last fall’s election, is expected to speak at the 11 a.m. service at the Cathedral of the Holy Cross. Romney, a former governor of Massachusetts, was invited to the service by Gov. Deval Patrick (D), who invited all former governors to attend. The Boston Globe, citing a source close to Romney, confirmed that he would attend.

The service, called “Healing Our City: An Interfaith Service,” had attracted a crowd of hundreds by 7:15 a.m., 45 minutes before the doors to the cathedral, which seats 2,000, were to open.

“We’re here to support the victims, to support Boston,” Karen Richards, a 50-year-old runner from the San Francisco Bay area, told The Post’s David Montgomery. She had just finished the race when the bombs exploded.

Readying for Obama

Hundreds of people were lined up outside Boston’s Cathedral of the Holy Cross by 7:15 a.m., waiting to get in to hear President Obama address an interfaith service of “healing.”

Those at the front of the line said they had arrived near midnight.

Daughters of Mary of Nazareth await tickets to enter Boston's cathedral for an interfaith service. (David L. Ryan/Boston Globe) Daughters of Mary of Nazareth await tickets to enter Boston’s cathedral for an interfaith service. (David L. Ryan/Boston Globe)

The people received blue admission tickets handed out on a first come, first served basis. The doors would not open until 8 a.m. and the president was not due until late morning.

“We’re here to support the victims, to support Boston,” said Karen Richards, 50, from the San Francisco Bay area, wearing a blue marathon jacket. She had just finished the race when the bombs went off.

Richards’s friend Cheryl Babel, 58, a teacher from the Bay area, was stopped by police a half mile from the finish, after the blasts.

“We were all in a safe place; we’re just here to support those who were not fortunate enough to be in a safe place,” Babel said.

Their friend Lisa Evans, 51, a retail analyst also from the Bay area, had tried to watch them from the finish not far from the bombs, but the crowds were too thick so she stood farther away.

“I’m just glad I was not at the finish; it was just too crowded,” Evans said. “We were each blessed.”

The prayer event was called “Healing Our City: An Interfaith Service.”

First lady Michelle Obama was scheduled to accompany the president.

Reports: Officials have images of 2 suspects

Boylston Street, near the marathon finish line, this morning. (Matt Rourke / AP)

Clear video images of two suspects in the Boston Marathon bombings are expected to be released today by authorities in an appeal for help from the public, the Boston Globe reports.

The men, who are carrying dark bags, are visible on video of each of the two bombing sites. An official, who spoke to the Globe on condition of anonymity, said the best video came not from the Lord & Taylor store across Boylston Street from the bombings, as has been widely discussed, but from surveillance cameras on the same side of the street as the explosions.

It is not yet known when authorities will hold a briefing. President Obama is scheduled to attend a memorial service at 11 a.m.

CNN reported Wednesday night that investigators had been circulating photos to federal and state agencies of two “possible suspects.” The New York Post has what are purported to be photos of two men of interest. CBS News’ John Miller reports that the men pictured are not the suspects.

Video: A stirring anthem precedes Bruins game

(Elise Amendola / AP)

Sports returned to the city of Boston on Wednesday night, with the Bruins hosting the Buffalo Sabres at TD Garden, where security had been stepped up after the marathon bombings Monday.

But before the puck dropped on ice that was bedecked with a blue-and-yellow “Boston Strong” ribbon, there was a national anthem — and what a national anthem it was.

Rene Rancourt, who has sung the anthem at Bruins’ games for 35 years, started the song, then stepped back and let fans take over. (You can also watch it here.)

(Elise Amendola / AP)