Wednesday, April 17, 2013

Boston bomb parts pictured in leaked FBI bulletin Images of a pressure cooker bomb and duffel bag found at blast site of Boston Marathon. Images of a pressure cooker bomb and duffel bag found at blast site of Boston Marathon. / AP Photo/FBI

ON An intelligence bulletin issued to law enforcement includes a picture of a mangled pressure cooker and a torn black bag that the FBI says were part of a bomb that exploded during the Boston marathon.
The bulletin was obtained by The Associated Press.
Both explosive devices used in the Boston Marathon attack appear to have been placed in metal pressure cookers packed with nails and ball bearings designed to amplify the damage from the explosions, CBS News correspondent Bob Orr reports.
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Investigators believe the bombs were hidden in black nylon backpacks and housed inside sealable metal pots called pressure cookers. Pressure cooker bombs can help boost the power of relatively small devices by briefly constraining the blast. And when the cookers do explode, they can add large chunks of metal to the shrapnel spray. The IEDs have been popular with terrorists. Al Qaeda published a how-to recipe in an online Jihadi magazine. Several of the bombs were used in the 2006 attack on trains in Mumbai, India.
The details on the explosives emerged as the chief FBI agent in Boston made a public appeal for any tips to help identify suspects. At a news conference late Tuesday afternoon in Boston, FBI Special Agent in Charge, Richard Deslauriers, indicated that the range of suspect and motive is "wide open," and that the investigation is still in its "infancy." He also mentioned that the FBI had received about 2,000 tips as of noon as agents looked for any photographic or video evidence from witnesses.
Deslauriers also said that both explosive devices appears to have been placed in a black nylon bag or backpack. A law enforcement source told CBS News senior investigative producer Pat Milton that investigators also found pieces of an electronic circuit board possibly indicating a timer was used in the detonation of the bomb. Orr reports that investigators have now recovered pieces of the backpacks and the pressure cookers; however, at the moment, the FBI does not know how the bombs were triggered.
A law enforcement official told CBS News that the two bombs that exploded were made to look like discarded property. It is still unknown if one or both bombs were in garbage cans. One may have been on the sidewalk.
The bombs were described as "low explosive," but with "anti-personnel" packing. The official said there were apparently things like BB's, ball bearings and nails in the bombs. This is consistent with doctors reporting shrapnel pulled from victims.
A doctor treating the wounded said 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.

Law enforcement sources told CBS News' Milton that a Saudi Arabian man who was being questioned by investigators is not being considered a suspect at this time, and it appears that he was a spectator who was injured in the attack.
At the White House, meanwhile, President Barack Obama, who is to travel to Boston Thursday for an interfaith service for the bombing victims, 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 U.S., 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.
Homeland Security Secretary Janet Napolitano said there was no evidence the bombings were part of a wider plot. But she said security was stepped up as a precaution.
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.
The Pakistani Taliban, which claimed responsibility for the 2010 attempt in Times Square, has denied any role in the Boston Marathon attack.

The two bombs blew up about 10 seconds and around 100 yards apart Monday near the finish line of the 26.2-mile race, tearing off limbs, knocking people off their feet and leaving the streets stained with blood and strewn with broken glass. The dead included an 8-year-old boy and a 29-year-old woman.
"We started grabbing tourniquets and started tying legs. A lot of people amputated," said Roupen Bastajian, a state trooper from Smithfield, R.I., who had just finished the race when he heard the explosions.

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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," DesLauriers said earlier in the day.
Gov. Deval Patrick said that contrary to earlier reports, no unexploded bombs were found.
Boston police and firefighter unions announced a $50,000 reward for information leading to arrests in the bombing.
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.
At least 17 people were critically injured, police said. At least eight children were being treated at hospitals. In addition to losing limbs, victims suffered broken bones, shrapnel wounds and ruptured eardrums.
Dr. Stephen Epstein of the emergency medicine department at Beth Israel Deaconess Medical Center said he saw an X-ray of one victim's leg that had "what appears to be small, uniform, round objects throughout it — similar in the appearance to BBs."

Dr. Richard Wolfe, chief of Emergency Medicine at Beth Israel Deaconess Medical Center, told CBS News Tuesday that the injuries sustained in the bombing have been primarily shrapnel injuries in the lower extremities.
"Some hand injuries, but mainly devastating injuries to limbs," Wolfe said. "We have at least two amputations and a number of very serious wounds that require fairly aggressive care."
Eight-year-old Martin Richard was among the dead, said Rep. Stephen Lynch, a family friend. The boy's mother, Denise, and 6-year-old sister, Jane, were badly injured. His brother and father were also watching the race but were not hurt.
A candle burned on the stoop of the family's single-family home in the city's Dorchester section Tuesday, and the word "Peace" was written in chalk on the front walk.
Neighbor Betty Delorey said Martin loved to climb neighborhood trees and hop the fence outside his home.
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Also killed was Krystle Campbell, a 29-year-old restaurant manager from Medford, Mass., who had gone with her best friend to take a picture of the friend's boyfriend crossing the finish line on Monday afternoon.
William Campbell said his daughter was "very caring, very loving person, and was Daddy's little girl."
A very emotional Patty Campbell told reporters about Krystle: "Everybody who knew her loved her. She had a heart of gold. She was always smiling and friendly. You couldn't ask for a better daughter. This doesn't make any sense."
A graduate student at Boston University is also one of the fatalities in Monday's attack, the school's president, Robert Brown, announced on Facebook, while another student was injured and being treated at Boston Medical Center. "We cannot at present release the names of the victims," said Brown. "I can tell you that the injured student is in stable condition. Our hearts and thoughts go out to the family and friends of both victims."
On late Tuesday, the Chinese Consulate confirmed that the deceased is a Chinese citizen. "At the request of her family, the victim's personal information will not be disclosed. Another Chinese citizen is among the injured and is in stable condition now after surgery," said the consulate in a statement.
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.
Demi Clark, a runner from North Carolina who said she was the crossing finish line as the first blast went off, told CBSNews.com "blood was everywhere instantly."
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"Nobody knew what to do - after the second one went off we were like, 'the city's under attack,'" Clark said.
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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.

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