Still stunned and with tears streaming down their faces, the people of Boston rose to their feet in defiance yesterday as President Barack Obama promised to track down those responsible for the bombings at Tuesday's marathon.
Speaking from the pulpit of the city's 19th-century Cathedral of the Holy Cross, less than 2km from the scene of the atrocity which killed three and injured dozens, an emotional Obama was cheered as he spoke directly to the terrorists, telling them: "Yes, we will find you, and yes, you will face justice."
The 2000-strong congregation, some still proudly wearing their official yellow and blue Boston Marathon tops, stood and clapped, their applause echoing in a spontaneous outpouring of feeling as Obama described their home as "the greatest city of Earth" and "not just a place but a perfect state of grace".
He repeatedly used the metaphor of the marathon race to describe how Boston would "run again", ultimately triumphing over the "small, stunted individuals" who launched the attack.