'Haunted by the tragedy,' Columbine joins U.S. gun violence walkouts

LITTLETON, Colo. (Reuters) - Like most of her friends at Columbine High School, Abigail Orton had not yet been born when a shooting attack at her school in a Denver suburb left 15 people dead and horrified the country.

from Reuters: U.S. http://ift.tt/2FBThKq