National Obama Attends Vigil for Boston Marathon Bombing Victims April 18, 2013 prev3 of 11next Spencer Platt / Getty ImagesRunners pray at an interfaith prayer service for victims of the Boston Marathon attack titled "Healing Our City," at the Cathedral of the Holy Cross on April 18, 2013 in Boston. Share Read Later President Obama traveled to Boston on Thursday to speak at an interfaith service for victims of Monday’s attack.