Russia contacted US twice about Boston bomber Associated Press Copyright 2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 11:08 am, Wednesday, April 24, 2013 WASHINGTON (AP) — Republican Senator Saxby Chambliss says the Russians contacted the U.S. twice about Tamerlan Tsarnaev (tsahr-NEYE'-ehv), one of the men authorities say was behind the Boston Marathon attacks. The FBI said it told Russia that investigators found nothing to suggest he was part of an extremist group.