updated 05/16/2013 AT 11:25 AM ET
•originally published 05/16/2013 AT 11:35 AM ET
Shortly before his April 19 capture, as he remained hidden and bleeding inside the hull of a boat, Boston Marathon bombings suspect Dzhokhar Tsarnaev reportedly scrawled a note admitting to the April 15 attack and saying it was in retaliation for American action against Muslims.
A law enforcement source also told CNN on Thursday that the message said Dzhokhar, 19, would not miss his older brother Tamerlan Tsarnaev, 26, – who had already been killed by police on April 18 – because he would soon be joining him as a martyr in paradise.
“When you attack one Muslim, you attack all Muslims,” read the note, scrawled with a marker on the interior wall of the boat’s cabin, according to CBS News senior correspondent John Miller.