One said, "Mom and Dad ache for you every minute." Another said, "Life will never be the same without you."
The siblings of those killed in New York four years ago on Nine-Eleven read aloud the names of their brothers and sisters Sunday. Some added brief messages. The roll call of the 2,749 names lasted more than four hours.
Parents and grandparents had read the victims' names at Ground Zero last year. Children provided the voices in 2003.
Later Sunday evening, two light beams inspired by the twin towers are scheduled to shoot skyward in an echo of the towers' silhouette. The "Tribute in Light" will fade at dawn.