@CNN: This 7-year-old girl was the only student at an Alexandria, Virginia, elementary school to participate when students across the nation walked out of school in support of school shooting victims, according to her mother https://t.co/dXQFZdk8dX https://t.co/JrivotSIfr

@CNN: This 7-year-old girl was the only student at an Alexandria, Virginia, elementary school to participate when students across the nation walked out of school in support of school shooting victims, according to her mother https://t.co/dXQFZdk8dX https://t.co/JrivotSIfr