put out by inspire magazine in the summer of 2010, how to build a bomb in your mum s kitchen. paul cruickshank is a terrorism analyst for cnn. now, these similarities included the fact that pressure cookers were used and explosive shrapnel was used, a low-grade explosive powder was used, but also very specific stuff like the fact that inspire magazine told followers that they should glue shrapnel inside the pressure cookers. now, that s what was done in boston. reporter: published by al qaeda in the arabian peninsula in english, the magazine was started by anwar al awlaki, the american yemeni cleric who was killed by a u.s. drone strike. cruickshank has been tracking al qaeda and this magazine for years. he says investigators are looking closely at whether the brothers tsarnaev got their bomb
of thousands of chechens perished in a mass deportation ordered by joseph stalin. in the 1990s chechens fought and won a bloody war for independence from russia. it was during this violence that the younger tsarnaev brother dzhokhar was born and given the name of a chechen leader. it s a sure sign of chechen patriotism in the family that in 1993 they called their little son dzhokhar, after dzhokhar dudaev, who was the pro-independence president. reporter: but chechen independence wouldn t last. another war with russia would kill thousands. and chechen extremists would wage a campaign of terror across russia, killing 186 children at a school in beslan, and more than 100 theatergoers in moscow. the tsarnaev family escaped the violence of the region by making their way to the u.s. he would tell me that he s from chechnya.
looking closely at whether the brothers tsarnaev got their bomb recipe here. that could have larger implications. one of the largest concerns of western counterterrorism officials is that inspire magazine is still publishing new issues. in an issue that was put out recently, the magazine stated, we are publishing america s worst nightmare. reporter: as investigators sift through evidence, the bits of bombs found blown across the crime scene should yield other clues, too. what were the components used in creating these devices? coupled with that, you re going to have an investigation or laboratory science is working on things like fingerprints, hair and fibers that may be included in there, and also tool markings. reporter: ray lopez is a former fbi explosives expert. these things were made with tools. so there s going to be a look for tool marks that are left after these things were done. and that s going to be matched
it was during this violence that the younger tsarnaev brother dzhokhar was born and given the name of a chechen leader. it s a sure sign of chechen patriotism in the family that in 1993 they called their little son dzhokhar, after dzhokhar dudaev, who was the pro-independence president. reporter: but chechen independence wouldn t last. another war with russia would kill thousands. and chechen extremists would wage a campaign of terror across russia, killing 186 children at a school in beslan, and more than 100 theatergoers in moscow. the tsarnaev family escaped the violence of the region by making their way to the u.s. he would tell me that he s from chechnya. reporter: luis vasquez was friends with tamerlan in high school. that s where he s from. that s where he told me he has struggles. he didn t really elaborate.
cambridge rindge and latin score in 2004. he could be intimidating because people knew he was a boxer and he had more of a reserved personality to him. but if you went up to him, he talks to you right back and he was very friendly. reporter: but were there any clues of the violence to come? he never expressed any desires to harm people. they did respect life at one point. they were friendly. reporter: after high school tamerlan attended bunker hill community college, studying accounting. until 2008, when he left college. but he continued to pursue his dream. good? mm-hmm. reporter: boxing trainer eddie bishop met tamerlan at a tournament. he was a fighter that had a lot of skill and a lot of a lot of ability. reporter: but bishop questioned whether tamerlan could ever become a boxing champ. he had all the skill, but he lacked the heart, the fundamental ingredient to make you a champion. reporter: the tsarnaev family is from war-torn chechnya and