FBI appeals for help solving marathon bombings

Philadelphia Phillies 
center fielder Ben Revere runs off the field with tape on his glove that says 
'Pray for Boston,' for the victims of the Monday bombings at the Boston Marathon,
 in the fifth inning of a baseball game against the Cincinnati Reds, 
Tuesday, April 16, 2013, in Cincinnati. (AP Photo/Al Behrman)

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BOSTON (AP) — A bomber may have been seen amid the Boston Marathon revelers carrying an unusually heavy nylon bag, weighed down with shrapnel-packed explosives, the FBI has suggested. Or perhaps someone heard something beforehand as a culprit tested explosives or expressed an interest in attacking the race.
Law enforcement agencies pleaded Tuesday for the public to come forward with photos, videos or any information that might help them solve the twin bombings that killed three people and wounded more than 170 a day earlier. Investigators circulated information about the bombs, which involved kitchen pressure cookers packed with explosives, nails and other lethal shrapnel — but the FBI said nobody had claimed responsibility.
"Someone knows who did this," Richard DesLauriers, FBI agent in charge in Boston, said at a news conference where he detailed the type of clues a bomber might have left. "Importantly, the person who did this is someone's friend, neighbor, co-worker or relative." ( ... )


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