The investigation into the Boston marathon bombings took its most significant step forward when the Federal Bureau of Investigation released surveillance pictures of two suspects it said it wanted to question.
Richard DesLauriers, the special agent in charge of the FBI’s Boston field office, said on Thursday that the footage showed one of the suspects – whom he identified as ‘suspect two’ – leaving a backpack at the site of the second of the two explosions near the marathon finish line.
The pictures showed two apparently young men, one wearing a black baseball cap and the other a white one. Both were carrying backpacks through crowds around the annual marathon.
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