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Right now in the -- marathon terror attack which in and recording captured by a department store camera.
Could potentially be huge break in the hunt for those responsible -- intelligence correspondent Catherine Herridge is live from Washington with more -- When he -- in addition to the video and the still images and investigative source tells Fox News.
That there is -- significant social media footprint on the bombings providing new leads to investigators.
More than 30000 social media messages collected within -- one mile radius of the finish line from 24 hours before to 24 hours after the explosions.
With Twitter and FaceBook lighting up after the attack the social media generated what are called link analysis charts which show the relationships.
Between the social media messages then that investigated criteria Fox News was told investigative criteria in this case.
Included messages that seemed out of place or coated with the results being provided to federal agencies leading the investigation.
Boston is also told that the battery in one of the devices is of investigative interest.
-- the manufacturer says is extremely common tens of thousands are sold every year the battery is most often found.
In radio controlled toys so rather than purchase a battery package.
With a dozen or so double -- AAA batteries.
The bomb maker chose to go an extra step to purchase an item.
Withdraw the battery from it and use it as the power source in the bomb.
Fox News understands there are at least two individuals the FBI wants to identify and talk to in connection to the investigation.
Fox News has confirmed that the feds possess at least one image that shows -- young man who may be dropping a bag near the blast site in Boston.
On the -- secretary to -- -- a short time ago defended the pace of the investigation.
The investigation is proceeding -- And it just you know this is not an end CIA asset -- sometimes you have to take time to properly.
You know put the chain together to identify.
The perpetrators that everyone's committed to seeing -- that gets done in the right way.
Today with several -- and information that we're developing in the week.
Confirm that we will bring it to -- -- some interesting five -- and leads there for sure more as we get a captain thank you Iraq.
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