12th anniversary of 9/11 (41 images)

Geraldine Davie of Pelham, NY cries after viewing name of her 23-year-old daughter Amy O'Doherty who was killed on 9.11. Photo was taken at the 9/11 Memorial during ceremony marking the 12th Anniversary of the attacks on the World Trade Center in New York,Wednesday, Sept. 11, 2013...David Handschuh/New York Daily News/POOL..

A heart shaped balloon floats past the Freedom Tower during the 9/11 Memorial marking the 12th Anniversary of the attacks on the World Trade Center in New York, Wednesday, Sept. 11, 2013. UPI/David Handschuh/POOL

Kara Tolmie and her son Gavin, 8, of East Setauket, NY look at a book of names of those killed on 9/11. Kara's sister in law Jill Ann Metzler was among almost 3000 killed. Photo was taken at the 9/11 Memorial during ceremony marking the 12th Anniversary of the attacks on the World Trade Center in New York,Wednesday, Sept. 11, 2013. UPI/David Handschuh//POOL

A boy looks at names on the South reflecting pool at the 9/11 Memorial during ceremonies marking the 12th anniversary of the 9/11 attacks on the World Trade Center in New York, September 11, 2013. UPI/Stan HONDA/POOL