Defense lawyers say it 's impossible to find an impartial jury in Massachusetts . They say Dzhokhar Tsarnaev and his associates planted bombs at 2013 Boston Marathon . Tsarnaev has pleaded not guilty . Three people died and more than 200 were wounded in the attack .
Defense lawyers say it 's impossible to seat an impartial jury in Massachusetts . Prosecutors say Dzhokhar Tsarnaev and his brother planted bombs at 2013 Boston Marathon . Tsarnaev has pleaded not guilty . Three people died and more than 200 were wounded in the attack .