Hundreds of people gathered Wednesday at a candlelight vigil in Nashville to honor and mourn the three children and three adults who were killed in a shooting at a Christian school this week. The downtown ceremony for the victims of the shooting at The Covenant School was largely somber and silent and filled with young people. First lady Jill Biden and singer Sheryl Crow were among those attending, as were civic leaders including the mayor and police chief. “Just two days ago was our city’s worst day,” Mayor John Cooper said. “I so wish we weren’t here, but we need to be here.” Police have said a 28-year-old former student drove up to the school Monday morning, shot out the glass doors, entered and began firing indiscriminately. The dead were identified as as students Evelyn Dieckhaus, Hallie Scruggs and William Kinney, all 9 years old; Katherine Koonce, 60, the head of the school; substitute teacher Cynthia Peak, 61; and custodian Mike Hill, also 61. Authorities have not yet determined the shooter's motive but say the assailant did not target specific victims.