Boston: A day after twin blasts rocked Boston killing three and injuring over 180 people, the FBI is working hard to look for those responsible. CNN has reported that a Taliban or al Qaeda hand has been ruled out and the FBI made a public announcement seeking help into any clues.
Law enforcement officials have reportedly said that they have recovered forensic evidence that suggests the two explosive devices may have been inside heavy black nylon bags. Officials also said a pressure cooker stuffed with gunpowder and shrapnel may have caused at least one of the blasts.
Investigators are also looking into a letter received by a US senator. Forensic experts claimed that the substance on top of the envelope tested positive for ricin poison. Meanwhile, tributes continue to pour in for the victims. A candle-light vigil in Boston will be attended by US President Barack Obama on Thursday.
Shaken but determined, Bostonians struggled to get back to their workday routines, the day after a twin bombing wreaked havoc during the city's world-famous marathon and led to the closure of a wide area of Boston's city center.
Despite the horror that unfolded at the finish line of the 117th Boston Marathon on Patriots' Day, a Massachusetts state holiday, some wanted to get back to work as a message of defiance to the perpetrators of the attack. "I simply refuse to let a few deranged people intimidate me and get me away from my routine," said George Meier, 56, an information technology manager for a Boston pharmaceutical company.
To be sure, some of the city's biggest financial service firms had to keep workers at home because their offices are near or within a 12-block crime scene at Copley Square, where the two bombs exploded Monday afternoon, ripping indiscriminately through spectators, race officials and runners. "We want you to live your life. We want you to be vigilant. There is no reason not to come into the city," said Boston Police Commissioner Ed Davis, who narrowed the cordoned-off area to about 12 blocks from an initial 15.
Massachusetts Governor Deval Patrick said the state would be open for business, "but it will not be business as usual." He told commuters using public transport to expect a beefed-up police presence, including random searches of packages, bags, and backpacks.
With Additional Inputs from Reuters