After the ceremony, the national memorial shared a statement of apology on Facebook to those who may have been unable to attend due to the sanctuary's 1,200-person capacity or in the overflow areas.

The youngest survivor of the 1995 domestic terrorist attack had a breathing tube for a decade and was so badly burned he had to play outside at night. But PJ Allen says his family made him feel like he had a normal life.

Events marking 30 years since the tragic Oklahoma City bombing: from the 30th Anniversary Remembrance Ceremony to free entry at the Oklahoma City National Memorial & Museum and info about the upcoming Memorial Marathon.