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Boston bombing suspect Dzhokhar Tsarnaev left [a note] claiming responsibility for the April 13 attack on the Boston Marathon, reports CBS News senior correspondent John Miller.
Sources tell Miller that Tsarnaev wrote the note in the boat he was hiding in as police pursued him, and as he bled from gunshot wounds sustained in an earlier shootout between police and his older brother, Tamerlan Tsarnaev.
The note, scrawled with a pen on the interior wall of the cabin, said the bombings were retribution for U.S. military action in Afghanistan and Iraq, and called the Boston victims collateral damage in the same way Muslims have been in the American-led wars. "When you attack one Muslim, you attack all Muslims," the note added.
Dzhokar said he didn't mourn older brother Tamerlan, the other suspect in the bombings, writing that by that point, Tamerlan was a martyr in paradise -- and that he expected to join him there.
Miller's sources say the wall the note was written on was riddled with bullet holes from shots fired into the boat. The shots were fired after Dzhokhar came up through the tarp covering the boat amid police fears that he had another bomb.