REPORT: Bombers From Russia

CNN reports:

The suspects involved in the Boston Marathon bombing were brothers from the Russian Caucasus who moved to Kazakhstan before coming to the United States several years ago, a source briefed on the investigation told CNN. One of the brothers, identified by several sources as Tamerlan Tsarnaev, 26, studied engineering at Bunker Hill Community College but had taken off a year to train as a boxer, the source said.

The source said that a posting on a social media site under his name included the comment: "I don't have a single American friend. I don't understand them." He was wounded overnight and taken to a hospital, where he died. Police: 1 suspect dead, 1 on the run Several sources identified his brother, who remains on the lam, as Dzhokhar Tsarnaev, 19.

Here's an interview with the brothers' uncle, who apparently gets the news that one of his nephews is dead from the reporter. "I'm shocked. Wordless. They do not deserve to exist on this earth. I have no idea."