A preliminary examination of the cellphones and computers used by the Tsarnaev brothers has found no indication of an accomplice in the Boston Marathon bombing, according to a U.S. counter-terrorism source briefed on the FBI investigation.
The source stressed that the investigation is ongoing, but bureau officials at this point appear increasingly confident that “nobody else was involved,” said the source.
Dzhokhar Tsarnaev has told investigators he and his brother acted alone, learned to build the pressure-cooker bombs over the Internet and were motivated by a desire to defend Islam because of "the U.S. wars in Iraq and Afghanistan," said the source, who has received multiple briefings on the probe.
Dzhokhar Tsarnaev has told investigators he and his brother acted alone, learned to build the pressure-cooker bombs over the Internet and were motivated by a desire to defend Islam because of "the U.S. wars in Iraq and Afghanistan," said the source, who has received multiple briefings on the probe.Dzhokhar Tsarnaev has also told investigators that he and his brother got instructions on building bombs from an online magazine published by al Qaeda, federal law enforcement officials told NBC News.
He told investigators that the brothers read the instructions in Inspire, an online, English-language magazine that terror monitoring groups say al Qaeda began publishing in 2010.
The magazine has twice included articles on building bombs with kitchen pressure cookers —http://usnews.nbcnews.com/_news/2013/04/16/17782058-pressure-cooker-bombs-used-around-the-world-for-years?lite the method investigators say Tsarnaev and his brother, Tamerlan, used in the Boston attack.
Dzhokhar Tsarnaev told investigators [http://usnews.nbcnews.com/_news/2013/04/22/17860373-officials-hospitalized-bombing-suspect-says-he-and-brother-acted-alone-motivated-by-religion?lite ] that he and Tamerlan, who was killed after the shootout with police in the Boston suburb of Watertown, were motivated by religious fervor but were not in touch with overseas terrorists or terror groups, officials said.
Several officials familiar with the interrogation of Dzhokhar Tsarnaev described his behavior as cooperative.
A fireworks store in Seabrook, N.H., confirmed Tuesday that the older brother bought two large pyrotechnic kits there Feb. 6.
Tamerlan Tsarnaev bought two “good-size” mortar kits, consisting of tubes and shells, and black powder, said William Weimer, vice president of the store, Phantom. He said Tsarnaev paid $199.99 under a buy-one-get-one-free deal.
Weimer said he had Tsarnaev’s driver’s license on file, and said the FBI was at the store Friday or Saturday.
From his hospital room, the younger brother, in what was officially his first court appearance,communicated mostly by shaking his head. He spoke once, when asked whether he could afford a lawyer. He said, “No.” He was assigned three federal public defenders.
The White House said Monday that Tsarnaev will be tried in civilian court. Some Republicans have called for him to be treated as an enemy combatant, and tried in a military commission.
Tsarnaev, 19, is a naturalized American citizen of Chechen origin. White House press secretary Jay Carney said that American citizens cannot under law be tried in military commissions. He also noted that “hundreds of terrorists” have been convicted and imprisoned since Sept. 11, 2001, under the civilian court system.