Second Boston bomber friend jailed 3.5 years

A second college friend of convicted Boston bomber Dzhokhar Tsarnaev was sentenced to jail on Friday for obstruction and conspiracy that impeded the FBI investigation into the 2013 attacks. Azamat Tazhayakov, a student from an affluent family in Kazakhstan, was sentenced to three and a half years. Fellow friend and Kazakh student Dias Kadyrbayev, who was also enrolled at the University of Dartmouth, Massachusetts, was sentenced to six years on Tuesday for obstructing justice.