Robert Peraza, who lost his son Robert David Peraza, pauses at his son’s name at the North Pool of the 9/11 Memorial during the 10th anniversary ceremonies at the site of the World Trade Center on Sept. 11, 2011.
More than 2,700 people were killed when Al Qaeda terrorists hijacked U.S. passenger jets and flew them into the Twin Towers on Sept. 11, 2001.
We remember them.
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