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Saturday 27 February 2021
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Boston bombs said to be made from pressure cookers

The pressure cookers are believed to have been packed with shards of metal, nails and ball bearings.

People react as an explosion goes off near the finish line of the 2013 Boston Marathon in Boston, yesterday.
People react as an explosion goes off near the finish line of the 2013 Boston Marathon in Boston, yesterday.
Image: AP Photo/The Boston Globe, David L Ryan

THE BOMBS THAT ripped through the crowd at the Boston Marathon, killing three people and wounding more than 170, were fashioned out of pressure cookers and packed with shards of metal, nails and ball bearings to inflict maximum carnage, a person briefed on the investigation said today.

The details on the apparently crude but deadly explosives emerged as investigators appealed to the public for amateur video and photos that might yield clues. The chief FBI agent in Boston vowed “we will go to the ends of the Earth” to find those responsible.

A person who spoke on condition of anonymity because the investigation was still going on said the explosives were put in 6-litre kitchen pressure cookers, hidden in black duffel bags and left on the ground. They were packed with shrapnel, the person said.

The person said law enforcement officials have some of the bomb components but do not yet know what was used to set off the explosives.

A doctor treating the wounded appeared to corroborate the person’s account, saying one of the victims was maimed by what looked like ball bearings or ‘BBs’. Doctors also said they removed a host of sharp objects from the victims, including nails that were sticking out of one little girl’s body.

‘Malevolent individual”

At the White House, meanwhile, President Barack Obama said that the bombings were an act of terrorism but that investigators do not know if they were carried out by an international organization, a domestic group or a “malevolent individual.”

He added: “The American people refuse to be terrorized.”

Across the US, from Washington to Los Angeles, police stepped up security, monitoring landmarks, government buildings, transit hubs and sporting events. Security was especially tight in Boston, with bomb-sniffing dogs checking Amtrak passengers’ luggage at South Station and transit police patrolling with rifles.

“They can give me a cavity search right now and I’d be perfectly happy,” said Daniel Wood, a video producer from New York City who was waiting for a train.

Similar pressure-cooker explosives have been used in Afghanistan, India, Nepal and Pakistan, according to a July 2010 intelligence report by the FBI and Homeland Security. Also, one of the three devices used in the May 2010 Times Square attempted bombing was a pressure cooker, the report said.

“Placed carefully, such devices provide little or no indication of an impending attack,” the report said.

Federal investigators said no one had claimed responsibility for the bombings, which took place at the world’s best-known distance race, held every year on one of Boston’s biggest holidays, Patriots’ Day.

“We will go to the ends of the Earth to identify the subject or subjects who are responsible for this despicable crime, and we will do everything we can to bring them to justice,” said Richard DesLauriers, FBI agent in charge in Boston.

He said investigators had received “voluminous tips” and were interviewing witnesses and analyzing the crime scene.

No unexploded bombs

Governor Deval Patrick said that contrary to earlier reports, no unexploded bombs were found.

FBI agents searched an apartment in the Boston suburb of Revere overnight, and investigators were seen leaving with brown paper bags, plastic trash bags and a duffel bag. But it was unclear whether the tenant had anything to do with the attack.

A law enforcement official who spoke on condition of anonymity because he was not authorized to release details of the investigation said the man had been tackled by a bystander, then police, as he ran from the scene of the explosions.

But the official said it is possible the man was simply running away to protect himself from the blast, as many others did.

At a news conference, police and federal agents repeatedly appealed for any video, audio and photos taken by marathon spectators, even images that people might not think are significant.

“There has to be hundreds, if not thousands, of photos and videos” that might help investigators, state police Col. Timothy Alben said.

Boston Police Commissioner Edward Davis said investigators also gathered a large number of surveillance tapes from businesses in the area and intend to go through the videos frame by frame.

“This is probably one of the most photographed areas in the country yesterday,” he said.

23,000 runners

About 23,000 runners participated in this year’s Boston Marathon. Nearly two-thirds of them had crossed the finish line by the time the bombs exploded, but thousands more were still completing the course.

The attack may have been timed for maximum bloodshed: The four-hour mark is typically a crowded time near the finish line because of the slow-but-steady recreational runners completing the race and because of all the friends and relatives clustered around to cheer them on.

Davis, the police commissioner, said authorities had received “no specific intelligence that anything was going to happen” at the race. On Tuesday, he said that two security sweeps of the route had been conducted beforehand.

Patriots’ Day commemorates the opening shots of the American Revolution, at Concord and Lexington in 1775.

Richard Barrett, the former UN coordinator for an al-Qaida and Taliban monitoring team who has also worked for British intelligence, said the relatively small size of the devices in Boston and the timing of the blasts suggest a domestic attack rather than an al-Qaida-inspired one.

“This happened on Patriots’ Day — it is also the day Americans are supposed to have their taxes in — and Boston is quite a symbolic city,” said Barrett, now senior director at the Qatar International Academy for Security Studies.

Read: FBI pledge to find those responsible for the “act of terror” at Boston Marathon >

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