Anwar al-Awlaki

Anwar al-Awlaki's recorded lectures and writings featured in digital-evidence testimony and expert discussion of Tsarnaev's alleged ideological influences. Kevin Swindon identified files bearing al-Awlaki's name on computers and CDs recovered from the Honda Civic and Mercedes; those comparisons established common content, not who read or listened to it. Twitter evidence included a post recommending his Hereafter Series. Matthew Levitt described al-Awlaki as an imam and preacher involved in Inspire magazine, distinguished earlier nonviolent religious lectures from explicitly violent sermons, and identified his voice in two recordings played in court. Levitt compared themes of religious reward, collective defense, and willingness to die with Tsarnaev's boat writing, without describing a specific causal sequence of influence.

The defense challenged both attribution and relevance. During cross-examination, Steven Kimball acknowledged that a tweet he associated with al-Awlaki contained no link to him and that he had not researched the quotation's origin; Conrad proposed that it came from the Qur'an. Bruck objected that background about extremist figures risked unfair prejudice without proof of Tsarnaev's awareness. The court permitted relevant background testimony but cautioned the government against excessive detail. Levitt also rejected an automatic progression from radical ideas to violence. Tiarrah Dottin denied knowing about the alleged al-Awlaki video use raised in questioning; the court overruled Watkins's objection, but her answers did not establish that use. In closing, Chakravarty argued that access to extremist material and later conduct showed Tsarnaev's own ideological adoption.