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Good evening I'm -- -- in the two weeks since the Boston bombings many experts have insisted the two known suspects must have had help.
Tonight federal authorities say we have a better idea of who anyhow.
Three young men are in custody accused of involvement after the attack.
Chief intelligence correspondent Catherine Herridge has the latest information.
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Are charged with obstructing justice.
A third man -- -- those who is not seen here is charged with lying to federal investigators.
After -- brief court appearance in Boston attorneys for two of the accused address report.
As we've said from the very beginning.
He assisted the FBI in this investigation.
He is -- shocked and horrified by the violence in Boston that took place as the rest of the community is he has cooperated fully with the authorities.
And it looks forward to the trees coming out in this case.
According to the criminal complaint the three men all friends -- so course -- -- from UMass Dartmouth believed he was one of the Boston bombing suspects based on surveillance video released by the FBI April 18.
And based on evidence of bomb making -- so cars dorm suite including fireworks shown in this evidence photo.
After attacks from so car on the night of April 18 it's alleged the three men believed they would never see their friend again and they quote collectively decided to throw the backpacking fireworks into the trash.
Because they did not wants or -- to get into trouble a computer laptop was also taken.
Last week the FBI searched a landfill a New Bedford, Massachusetts the criminal complaint which does not allege the suspects were told directly by the -- nice to destroy evidence.
Does contain telling details about the case.
The two days after the bombings and before the FBI publicly release photos of the suspects -- cut his hair in apparent effort to Alter his appearance.
A month before the marathon bombing -- -- told his friends he knew how to build bombs and a few months before that the friends set off fireworks along the Charles River in Cambridge.
As the news was breaking the White House spokesman was asked if the new arrests undercut the president's assessment that this or ninth Brothers were -- -- Here's the investigations need to follow all -- And I -- that the president expects that's what the FBI which is the lead agency in this investigation isn't it is making sure is what's happening in this investigation.
It's -- Homeland Security spokesman confirms that one suspect as a much -- a young cop who's in the US on a student visa withdrew from classes January 4.
But was able to get back into the country two weeks later because customs wasn't notified.
As -- cars back -- the court documents state he was eventually recovered by the FBI perhaps -- Catherine thank you.
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