President Obama told a memorial service for the victims of the Boston Marathon bombings that America "will find" those responsible for the attack. In a speech, Obama said:
We will find you. You will face justice... we will hold you accountable.
We may be momentarily knocked off our feet but we'll pick ourselves. We will finish the race. On that toughest mile, just when we think we've hit a wall, someone will be there to cheer us on.
This time next year the crowds will gather and cheer louder for the 118th Boston Marathon.