April 30th, 2013
11:14 PM ET

AP: Russia watched Tsarnaev during trip

CNN's Nick Paton Walsh reports on Tamerlan Tsarnaev's six-month visit to Russia in 2011 and who he might have met there. His trip may provide clues to a major question pertaining to the Boston Marathon attack: did the brothers have an accomplice?

April 25th, 2013
01:26 AM ET

Boston suspects' dad coming to U.S.

A family rep. tells CNN the mother of the bombing suspects won't be making the trip. Nick Paton Walsh reports.