Get a $25 Nike Gift Card for answering a survey on Nike http://www.caroidjinanword.net/1166/77/154/724/1391.33tt65796585AAF11.php Unsub- http://www.caroidjinanword.net/1166/77/154/724/1391.33tt65796585AAF12.html conference Friday, downplayed their Chechen ties and said the situation has "nothing to do with Chechnya."FBI investigators are scouring records to find out where and when the suspects might have been radicalized. The other brother, Tamerlan Tsarnaev, who was killed in a shootout with police overnight in the Boston suburbs, traveled to Russia last year, Fox News has learned.Fox News has also learned that the younger brother was granted asylum in 2002, obtained a green card in 2004 and was granted citizenship in 2012. The elder brother had an arrest for domestic violence in 2009.Williams teaches at the University of Massachusetts at Dartmouth, where Tsarnaev is also a registered student. Williams said he's never formally had Tsarnaev as a student -- but said a colleague who does told him he was supposed to be in class Friday.Details are still emerging about both suspects. The older brother told a photographer in 2009 that: "I don't have a single American friend, I don't understand them." He worked out in a gym and dreamed of making the U.S. Olympic boxing team, according to an online photojournalism slideshow that chronicled his training.Tamerlan Tsarnaev previously studied at Bunker Hill Community College for three semesters -- fall 2006, spring 2007 and fall 2008 -- in hopes of becoming an engineer.The brothers' background has also raised questions about ties between Chechnya and Islamic radicalism.Williams described a complicated pi The brothers behind Monday's deadly bombing at the Boston Marathon are believed to have come to the U.S. from Chechnya as long as a decade ago, but apparently never fit in with the American culture.I dont have a single American friend, I dont understand them, the older brother, Tamerlan Tsarnaev, who was killed in a shootout with police hours after the pair was identified as suspects, told a photographer in 2009.- Tamerlan TsarnaevWhat drove him and his brother, Dzhokhar A. Tsarnaev, 19, who lived with him in Cambridge, Mass., to perpetrate the deadly attack which killed three people and injured 176 others is not clear. They are believed to be Muslim and to have had military training overseas. But the older brother, who was 26, also worked out in a gym and dreamed of making the U.S. Olympic boxing team, according to an online photojournalism slideshow that chronicled his training.The journalist who created the project, Johannes Hirn, could not be reached for comment. But one caption in his account described the family's odyssey to America.Tamerlan fled Chechnya with his family because of the conflict in the early 90s, and lived there for years in Kazakhstan before getting to the United States as a refugee, read the caption.Tamerlan previously studied at Bunker Hill Community College for three semesters fall 2006, spring 2007 and fall 2008 in hopes of becoming an engineer. He took off a semester from his studies to practice boxing at