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UPDATE: FBI releases photos of Boston bombing suspects

Posted: April 18, 2013 4:57 p.m.
Updated: April 18, 2013 4:57 p.m.

This surveillance photo provided by the FBI shows the two suspects, both in hats and carrying bags, walking among the marathon route in Boston before the explosions.

 

BOSTON (AP) — The FBI released photos and video Thursday of two suspects in the Boston Marathon bombing and asked for the public's help in identifying them, zeroing in on the two men on surveillance-camera footage less than three days after the deadly attack.

The photos depict one man in a dark baseball cap and the other in a white cap worn backward. The men were seen walking one behind the other in the crowd, and the one in the white hat was seen setting down a backpack at the site of the second explosion, said Richard DesLauriers, FBI agent in charge in Boston.

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

The images were released hours after President Barack Obama and first lady Michelle Obama attended an interfaith service at a Roman Catholic cathedral in Boston to remember the three people killed and more than 180 wounded in the twin blasts Monday at the marathon finish line.

The two men — dubbed Suspect 1 (in the dark hat) and Suspect 2 (in the white hat) — are considered armed and extremely dangerous, DesLauriers said, and people who see them should not approach them.

"Do not take any action on your own," he warned.

The break in the investigation came just days after the attack that tore off limbs, shattered windows and raised the specter of another terrorist attack on U.S. soil. FBI photo-analysis specialists have been analyzing a mountain of surveillance footage and amateur pictures and video for clues to who carried out the attack and why.

Generally, law enforcement agencies release photos of suspects only as a last resort, when they need the public's help in identifying or capturing someone.

Releasing photos can be a mixed bag: It can tip off a suspect and deny police the element of surprise. It can also trigger an avalanche of tips, forcing police to waste valuable time chasing them down.

Within moments of the announcement, the FBI website crashed, perhaps because of a crush of visitors.

In the images, both men appear to be wearing dark jackets. Suspect 1 appears to be wearing a backpack. The planting of the backpack is not depicted in the video footage that was made public.

The FBI made no mention of the men's height, weight or age range and would not discuss the men's ethnicity.

"It would be inappropriate to comment on the ethnicity of the men because it could lead people down the wrong path potentially," said FBI agent Greg Comcowich, a spokesman for the Boston FBI office.

The information on the first suspect was developed within a day or so before its release, DesLauriers said. Agent Daniel Curtin said the FBI did not issue the photos earlier because authorities wanted to be meticulous: "It's important to get it right."

At the Cathedral of the Holy Cross earlier in the day, Obama declared to the people of Boston: "Your resolve is the greatest rebuke to whoever committed this heinous act." He spoke in almost mocking terms of those who commit such violence.

"We finish the race, and we do that because of who we are," the president said to applause. "And that's what the perpetrators of such senseless violence — these small, stunted individuals who would destroy instead of build and think somehow that makes them important — that's what they don't understand."

"We will find you," he warned those behind the attack.

Seven victims remained in critical condition. Killed were 8-year-old Martin Richard of Boston, 29-year-old restaurant manager Krystle Campbell of Medford, Mass., and Lu Lingzi, a 23-year-old Boston University graduate student from China.

Video and photos recovered in the investigation are being examined and enhanced by an FBI unit called the Operational Technologies Division, said Joe DiZinno, former director of the FBI lab in Quantico, Va.

Investigators are looking at video frame by frame — a laborious process, though one aided by far more sophisticated facial recognition technology than is commercially available, forensic specialists said.

"When you have something that is this high-profile, they are going to use every available resource that they have," said former Miami federal prosecutor Melissa Damian Visconti.

The investigation will probably collect about a million hours of videotape from fixed security cameras and cellphones and cameras used by spectators, said Gene Grindstaff, a scientist at Intergraph Corp., a Huntsville, Ala., company that makes video analysis software used by the FBI and other law enforcement agencies.

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