The building was already full before the ceremony began at two this afternoon.
The memorial began with bagpipes, and a somber moment of silence, remembering that tragic day.
Eric Holleyman was the keynote speaker.
His father was one of the few that was able to crawl out of the rubble as a scared sixteen year old.
Some in attendance weren't in the building, but vividly remember the explosion from their front yards, or from sitting in school buses just yards away.
Today's motto was .
"No one is dead, truly dead, until no one remembers them and no one speak their name"