This week, survivors, first responders and family members of those killed came together t o mark the anniversary of the Boston Marathon bombings.
The events that unfolded starting at 2:49 p.m. on April 15, 2013, nearly three hours after the race's winners crossed the finish line, altered lives forever.
In this gripping video feature, survivors and runners who were at the finish line remember the frantic moments of that deadly day.
A year after two bombs claimed three lives and injured more than 260 people, their stories of survival are a testament to Boston's resilient spirit in the aftermath of the bombings. Their resolution to run again on Monday, the day the race takes place this year, comes from the determination to continue to rebuild, drawing strength from the heroics they saw that day.