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Pressure cooker packed with shrapnel used in Boston bombings; Motive still a mystery
AP source: Authorities recover pressure cooker lid
By EILEEN SULLIVAN / Associated Press
WASHINGTON (AP) -- Authorities investigating the deadly bombings at the Boston Marathon have recovered a piece of circuit board that they believe was part of one of the explosive devices, and also found the lid of a pressure cooker that apparently was catapulted onto the roof of a nearby building.
A law enforcement official briefed on the investigation confirmed to The Associated Press on Wednesday that authorities have recovered what they believe are some of the pieces of the explosive devices. The official spoke on condition of anonymity because this person was not authorized to publicly discuss evidence in the ongoing investigation.
A person close to the investigation previously told AP the bombs consisted of explosives put in 1.6-gallon pressure cookers, one with shards of metal and ball bearings, the other with nails.
BOSTON -- Federal agents are zeroing in on how the Boston Marathon bombing was carried out, but there's still no word on who did it and why.
An intelligence bulletin issued to law enforcement and released late Tuesday includes a picture of a mangled pressure cooker and a torn black bag. The FBI says evidence indicates the bomber packed a pressure cooker with explosives, nails and ball bearings and hid it in a back pack. The agency says the second bomb was in a metal container, but there isn't enough evidence to indicate that it was a pressure cooker.
The FBI and other law enforcement agencies continue to ask members of the public to come forward with photos, videos or anything suspicious they might have seen or heard.
Many of the more than 170 wounded remain in hospitals, many with serious injuries. A 9-year-old girl and 10-year-old boy are among 17 victims listed in critical condition.
The three people killed include an 8-year-old boy, a 29-year-old woman and a graduate student from China.
The FBI agent in charge says "the range of suspects and motives remains wide open."
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(Photo credit: CBSNews.com)