Arapahoe High students were seen walking toward the school’s running track with their hands in the air, and television footage showed students being patted down. Robinson said deputies wanted to make sure there were no other conspirators. Authorities later concluded that the gunman had acted alone.
Nearby neighborhoods were jammed with cars as parents sought out their children. Some parents stood in long lines at a church. One young girl who was barefoot embraced her parents, and the family began to cry.
The shooting came a day before the anniversary of the Newtown, Conn., attack in which a gunman killed 20 children and six adults at Sandy Hook Elementary School.
Arapahoe High stands just 8 miles east of Columbine High School in Littleton, where two teenage shooters killed 12 classmates and a teacher before killing themselves in 1999. The practice of sending law enforcement directly into an active shooting, as was done Friday, was a tactic that developed in response to the Columbine shooting.
Since Columbine, Colorado has endured other mass shootings, including the killing of 12 people in a movie theater in nearby Aurora in 2012. But it was not until after the Newtown massacre that state lawmakers moved to enact stricter gun-control laws. Two Democratic lawmakers were recalled from office earlier this year for backing the laws, and a third recently resigned to avoid a recall election.
The district attorney prosecuting the theater shooting, George Brauchler, lives near the high school. At a news conference, he urged anyone who needed help to call a counseling service and gave out a phone number.
Tracy Monroe, who had step-siblings who attended Columbine, was standing outside Arapahoe High on Friday looking at her phone, reading text messages from her 15-year-old daughter inside.
Monroe said she got the first text from her daughter, sophomore Jade Stanton, at 12:41 p.m. The text read, “There’s sirens. It’s real. I love you.”