BOSTON (CBS/AP) — Authorities investigating the deadly bombings at the Boston Marathon have found the lid of a pressure cooker that apparently was catapulted onto the roof of a nearby building, CBS News reported Wednesday.
According to the Associated Press, investigators also recovered a piece of circuit board that they believe was part of one of the explosive devices.
Photos: Boston Marathon Bomb Evidence
A person close to the investigation previously told the 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.
Investigators in white jumpsuits fanned out across the streets, rooftops and awnings around the blast site in search of clues on Wednesday.
They combed through debris amid the toppled orange sports drink dispensers, trash cans and sleeves of plastic cups strewn across the street at the marathon’s finish line.
Also Wednesday, a doctor at Boston Medical Center said two patients, including a 5-year-old child, remain in critical condition there. Dozens of others have been released from hospitals around Boston.
The blasts killed 8-year-old Martin Richard, of Boston, and 29-year-old Krystle Campbell, of Medford. The Shenyang Evening News, a state-run Chinese newspaper, identified the third victim as Lu Lingzi. She was a graduate student at Boston University.
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