NEW BEDFORD — Dias Kadyrbayev and Azamat Tazhayakov were college roommates who clicked with Dzhokhar Tsarnaev, another soccer-loving immigrant from the former Soviet Union who, unlike them, blended seamlessly into the United States. Tsarnaev spoke perfect English and knew where to shop and how to have a good time.
“He knew the system,” said Robert G. Stahl, Kadyrbayev’s criminal lawyer. “He knew how to go purchase things, where to go in college, what to do. . . . So they gravitated toward each other.”