Boston Bomber: I am sorry for the lives I have taken
Dzhokhar Tsarnaev has publicly expressed remorse for the first time since he executed the 2013 Boston marathon bombings.
Dzhohkhar Tsarnaev
2014 Boston Marathon kicks off under tight security
Security has been beefed up at the 2014 Boston Marathon, a year after the bombings that killed three people and injured hundred others.
Accused Boston Marathon bomber Tsarnaev indicted
A US grand jury has indicted accused Boston Marathon bomber Dzhohkhar Tsarnaev on charges of killing four people and using homemade bombs.
