Collected photos from the response to a shooting situation at Arapahoe High School.
A look inside the Arapahoe High School atrium. A snapshot of frantic moment as students had to leave quickly.
Sea of support for Claire Davis.
Tears and hugs are shared at a vigil held Saturday for shooting victim Claire Davis.
Arapahoe students light candles to begin vigil for Claire Davis.
The investigation at shooting suspect Karl Pierson's home in Highlands Ranch continues.
The Douglas County Sheriff Department bomb squad on scene at the suspected gunman's home in Highland's Ranch.
Arapahoe County Sheriff Grayson Robinson shares a statement from the Davis family about Claire's injuries.
Photo of shooting victim Claire Davis handed to media.
Sheriff Robinson says he will never say the Arapahoe High shooters name in public again.
The sign outside Arapahoe High School asking the community to help the victim's family.
A parent escorts her son from Shepherd of the Hills Church.
A man comforts a student after the shooting.
A woman hugs a student at Shepherd of the Hills Church near Arapahoe High School after a school shooting.
JoAnne Allen, right, hugs her son Alex Allen, 17.
Mother Joanne Kostecka (L) escorts her daughter Dominika Kostecka, 17, from Shepherd of the Hills Church.
An Arapahoe County Sheriff's Deputy is seen helping students board a bus after the shooting.
An Arapahoe County Sheriff's Deputy checks in students to board a bus after the shooting.
Police officers work outside Arapahoe High School .
Parents wait at Shepherd of the Hills Church to be reunited with their children.
"Courtney was in yoga class when shooting happened. She saw one girl running down w/ blood screaming for help" (Tweeted by Lindsey Sablan, 7NEWS)
Emergency vehicles sit outside Arapahoe High School after the shooting.
Students exit Arapahoe High School with their hands in the air. (7NEWS, AIRTRACKER7)
Students gathered on the track at 2:40 pm. They are being taken to Shepherd of the Hills Church to be reunited with parents. (7NEWS, AIRTRACKER7)
Sheriff Grayson Robinson says the student gunman is deceased. One student was shot and critically wounded. (Lindsey Sablan, 7NEWS)
Armed officers gathered outside the school. (7NEWS, AIRTRACKER7)
"Scene at suspected #ArapahoeHigh shooter’s home as police search inside." (Tweeted by Keli Rabon, 7NEWS)
"Students embrace each other at Shepherd of the Hills" (Tweeted by Lindsey Sablan, 7NEWS)
"Seeing SWAT and FBI walking around school. Still checking area. @ArapahoeSO believe 1 suspect, he's down" (Tweeted by Lindsey Sablan, 7NEWS)
Students are gathered on the high school's track. (7NEWS, AIRTRACKER7)
After sunset, several armed SWAT officers walk toward Arapahoe High School. (7NEWS, AIRTRACKER7)