A makeshift memorial on Boylston Street, near the finish line of the Boston Marathon. A message to Krystle Campbell, one of three people killed in two bomb blasts at the race two years ago, and a Champagne bottle adorned the site a day after Dzhokhar Tsarnaev was sentenced to die for his role in the attack. Photograph: Seán Proctor/The New York Times

A Kazakh exchange student who was friends with the Boston Marathon bomber was sentenced to 3½ years in US federal prison on Friday for removing a back(...)

Boston marathon bombing suspect Dzhokhar Tsarnaev (right) poses with Azamat Tazhayakov (left) and Dias Kadyrbayev in an undated photo taken in New York. Photograph: Reuters/vk.com

Kazakhstan said today it condemned any form of terrorism and was co-operating with the United States after two of its citizens were charged wit(...)