BOSTON, Mass. - Police said no arrests have been made in the Boston Marathon bombing in spite of widespread reports earlier this afternoon that a suspect was in custody Monday's deadly attack.
Earlier, Fox News reported that the circuit board suspected of being used to detonate the at least one of the bombs has been recovered, and that FBI investigators continue to scan and analyze the cell phone tower records to identify positive hits for signs of calls that may have triggered both explosions remotely.
Fox News reports that investigators believe one, or possibly two, pressure cookers were packed with explosives and shrapnel and hidden in backpacks to be left amid the crowd.
According to Fox News, the suspect was seen on surveillance footage and showed a young man carrying – and perhaps dropping – a black bag at the second bombing scene at Monday’s Boston Marathon. The camera at Lord & Taylor, located directly across the street, has given investigators clear video of the area, according to the unnamed official.
“The camera from Lord & Taylor is the best source of video so far,” said Dot Joyce, a spokeswoman for Boston Mayor Thomas M. Menino told the Boston Globe. “All I know is that they are making progress.”
According to a FBI and Department of Homeland Security bulletin obtained by Fox News, the evidence at this time supports just one pressure cooker used. Shrapnel in that device included nails, BBs and ball bearings. The main charge - possibly low explosive - has not been identified. The other device "was also housed in a metal container, but currently there is insufficient evidence to determine if it was also a pressure cooker. The fuse system and method of initiation for the two devices are unknown at this time."