A brief ceremony was held Friday morning in the parking lot of the grocery store where the shooting happened. It included an emotional moment of silence and the raising of an enormous American flag recovered from the site of the World Trade Center after 9/11.
Firefighters also raised the flag at a private ceremony at the location of a new statue that honors the shooting's youngest victim, 9-year-old Christina-Taylor Green.
The flag also was displayed at her funeral in January. She was born Sept. 11, 2001.