3 police officers described an intense gun ##fight with suspected Marathon terrorist suspects . They said the 2 men shot at them , threw grenades and tried to run them over . Jurors see the area where k Tsarnaev lived before his arrest .
3 police officers described an intense gun battle with Boston Marathon bomb suspects . They said the 2 men shot at them , threw bombs and tried to run them over . Jurors see the boat where Dzhokhar Tsarnaev hid before his arrest .