Yes now the reports are the guys are brothers from Chechnya (Muslim)
"Law enforcement officials identified the suspect still on the loose as Dzhokhar A. Tsarnaev, 19, of Cambridge, Mass. His brother, Tamerlan Tsarnaev, was identified as the man killed during an encounter with police after an armed carjacking of a Mercedes SUV in Cambridge. Tsarnaev was believed to be in his mid-20s.
The brothers’ alleged motive in Monday’s bombings remains unclear, but they appear to be originally from the southern Russian republic of Chechnya, and two law enforcement officials said there is a “Chechen connection” to the bombings. Chechnya has been racked by years of war between local separatists and Russian forces and extensive organized crime since the Soviet Union dissolved in 1991.
The Chechen conflict dates to the early 1990s. In the summer of 1999, fighters in the predominantly Muslim republic rose up in an attempt to throw off Russian domination. Vladimir Putin, then the Russian prime minister, responded quickly, firmly and brutally to put down the rebellion.
Later that summer, there were several explosions across Russia and Putin blamed Chechens. Putin sent the army back by force, which resulted in Western criticism of Russian tactics and human rights violations."
http://www.washingtonpost.com/politi...87f_story.html
