"That the brothers used TMobile is significant because the NSA boasted it had used the phone dragnet to contact chain the brothers after the attack. But anonymous sources claiming the dragnet is not comprehensive have claimed the dragnet doesn't pull in TMobile records. Given that Basaaly Moalin is the only other person with whom the phone dragnet was deemed a success, and he also had a TMobile phone,"
"Dzhokhar had two Twitter accounts. Both of them - @j_tsar and @Al_firdausiA - link up to his Gmail account. And he also had a Yahoo account. FBI Agent Steven Kimball, who introduced all this evidence, doesn't appear to have explained how he connected all these together, which is significant because they likely could have done it via NSA databases before criminally subpoenaing Twitter and Google."
"The truly appalling revelation, however, came when Dzhokhar attorney Miriam Conrad cross-examined Kimball after he had introduced a bunch of tweets claiming they were evidence of the defendant's jihadist intent. Turns out they were less evidence of jihadist intent than that Dzhokhar consumes the same pop culture many other Americans his age consume (along with a Russian rap artist). Conrad not only showed that the Kimball had no idea what he had been looking at, but hadn'"
Multiple survivors and FBI witnesses provided investigative details and survivor injuries at the Boston Marathon trial. Dzhokhar Tsarnaev and his brother used TMobile phones the day of the attack, with Dzhokhar's handset set up days earlier. NSA claimed to have used a phone dragnet to contact the brothers, while anonymous sources have suggested the dragnet excludes TMobile records. Dzhokhar maintained two Twitter accounts linked to his Gmail and also had a Yahoo account. FBI testimony did not clearly explain how those accounts and phone records were connected. Cross-examination revealed many referenced tweets reflected mainstream pop culture rather than clear jihadist intent.
Read at Emptywheel
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