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| FBI examine pressure cooker and black bag parts in Boston investigation | FBI examine pressure cooker and black bag parts in Boston investigation |
| (8 days later) | |
| The mangled lid of a pressure cooker and pieces of a torn black bag are being examined as part of the FBI investigation into the Boston marathon bombings, as agents search for clues as to who could have been behind the attack. | The mangled lid of a pressure cooker and pieces of a torn black bag are being examined as part of the FBI investigation into the Boston marathon bombings, as agents search for clues as to who could have been behind the attack. |
| Crime scene photos obtained by the Associated Press and Reuters show what is purported to be parts of an explosive device. It includes twisted parts of a metal casing, wires to a small box, a battery and a circuit board. The images emerged as law enforcement agencies continued to look for evidence that could help them narrow the search for those responsible for Monday's attack. As the investigation entered its third day on Wednesday, no arrests had been made, and it was still not known if the perpetrator or perpetrators were foreign or homegrown, working alone or in a group. | Crime scene photos obtained by the Associated Press and Reuters show what is purported to be parts of an explosive device. It includes twisted parts of a metal casing, wires to a small box, a battery and a circuit board. The images emerged as law enforcement agencies continued to look for evidence that could help them narrow the search for those responsible for Monday's attack. As the investigation entered its third day on Wednesday, no arrests had been made, and it was still not known if the perpetrator or perpetrators were foreign or homegrown, working alone or in a group. |
| Janet Napolitano, the homeland security secretary, told a congressional committee on Wednesday morning that there was no evidence the bombing was part of a broader plot, but she declined to go into further detail in an unclassified hearing. | Janet Napolitano, the homeland security secretary, told a congressional committee on Wednesday morning that there was no evidence the bombing was part of a broader plot, but she declined to go into further detail in an unclassified hearing. |
| Three people died after the two bombs detonated within seconds of each other on the home straight of the Boston Marathon. A further 176 spectators and runners were also injured. On Wednesday, doctors said a number of those wounded remained on the critical list, including a five-year-old boy. | Three people died after the two bombs detonated within seconds of each other on the home straight of the Boston Marathon. A further 176 spectators and runners were also injured. On Wednesday, doctors said a number of those wounded remained on the critical list, including a five-year-old boy. |
| As surgeons continue to treat those caught up in the blast, investigators will work on analysing fragments of the bombs that were found scattered in the debris. The FBI says it is likely that the explosive devices were constructed from pressure cookers packed with explosives and metal projectiles, such as nails, pellets and ball bearings. It is believed that the bombs were hidden inside backpacks. Images of black nylon pieces – purportedly from one of the bags – were obtained by the news wire services from law enforcement officials. AP said the pictures were part of a joint FBI and Department of Homeland Security bulletin to law enforcement agencies. | As surgeons continue to treat those caught up in the blast, investigators will work on analysing fragments of the bombs that were found scattered in the debris. The FBI says it is likely that the explosive devices were constructed from pressure cookers packed with explosives and metal projectiles, such as nails, pellets and ball bearings. It is believed that the bombs were hidden inside backpacks. Images of black nylon pieces – purportedly from one of the bags – were obtained by the news wire services from law enforcement officials. AP said the pictures were part of a joint FBI and Department of Homeland Security bulletin to law enforcement agencies. |
| Other pictures produced by the Boston Joint Terrorism Task Force show images of what are thought to be parts of one of the bombs. One depicts a small length of charred wire attached to a small box. Other images show a tangled metal lid, thought to be that of a pressure cooker. Reports on Wednesday suggest that it was found on a rooftop close to the marathon finishing line. | Other pictures produced by the Boston Joint Terrorism Task Force show images of what are thought to be parts of one of the bombs. One depicts a small length of charred wire attached to a small box. Other images show a tangled metal lid, thought to be that of a pressure cooker. Reports on Wednesday suggest that it was found on a rooftop close to the marathon finishing line. |
| Pieces of shrapnel have been recovered from the bodies of those who were injured. Doctors at a number of hospitals have reported nails, pellets and other metal fragments being pulled from wounds. | Pieces of shrapnel have been recovered from the bodies of those who were injured. Doctors at a number of hospitals have reported nails, pellets and other metal fragments being pulled from wounds. |
| "We've taken on large quantities of pieces. We send them to the pathologists and they are available to the police," Dr Peter Burke, the chief of trauma surgery at Boston Medical Centre, said on Wednesday. | "We've taken on large quantities of pieces. We send them to the pathologists and they are available to the police," Dr Peter Burke, the chief of trauma surgery at Boston Medical Centre, said on Wednesday. |
| Among those who died in the attack were Martin Richard, eight, from Boston's Dorchester neighbourhood, and Krystle Campbell, 29, who had been at the finish line to watch her boyfriend complete the race. The Chinese consulate in New York said that the third fatal victim was a Chinese citizen whose identity was not being made public. But state-run media in China have identified her as Lu Lingzi, a Boston University graduate student. | Among those who died in the attack were Martin Richard, eight, from Boston's Dorchester neighbourhood, and Krystle Campbell, 29, who had been at the finish line to watch her boyfriend complete the race. The Chinese consulate in New York said that the third fatal victim was a Chinese citizen whose identity was not being made public. But state-run media in China have identified her as Lu Lingzi, a Boston University graduate student. |
| Doctors said a number of survivors remained in a critical condition, and were still at risk from life-threatening conditions associated with their wounds. Of primary concern were infections, blood clots and the possibility of pneumonia, Dr Burke said. | Doctors said a number of survivors remained in a critical condition, and were still at risk from life-threatening conditions associated with their wounds. Of primary concern were infections, blood clots and the possibility of pneumonia, Dr Burke said. |
| For those patients not on the critical list, the long process of coming to terms with life-changing injuries – including the loss of a limb and in some cases double leg amputations – has begun. Dr Burke said there was "no magic bullet" to shield those at risk from developing conditions including post-traumatic stress disorder, but that trained experts were working with patients and their families. | For those patients not on the critical list, the long process of coming to terms with life-changing injuries – including the loss of a limb and in some cases double leg amputations – has begun. Dr Burke said there was "no magic bullet" to shield those at risk from developing conditions including post-traumatic stress disorder, but that trained experts were working with patients and their families. |
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