Late breaking developments in the Boston bombing investigation this morning.
Authorities are telling CBS News that suspect Dzhokhar Tsarnaev left a note claiming responsibility for the bombings shortly before he surrendered to police last month.
They say he wrote the note as he was hiding in the boat where police found him; it said he did not mourn his older brother Tamerlan, that Tamerlan was a martyr now in paradise.
And that Dzhokhar expected to join his brother there.
According to the report, Dzhokhar claimed the bombings were retribution for what the U.S. did to Muslims in Afghanistan and Iraq, writing that the Boston victims were collateral damage, like Muslims are in U.S. wars.
For more on this story click here - http://cbsn.ws/183z7OK
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