Photos: Terror at Arapahoe High School

Family and friends comfort each other outside Shepherd of the Hills Church after a school shooting at Arapahoe High School.  (Chris Schneider / Getty Images)

A parent escorts her son from Shepherd of the Hills Church after a school shooting at Arapahoe High School in Centennial, Colorado.  (Chris Schneider / Getty Images)

A woman reacts as students are reunited with their family members after being escorted out of Arapahoe High School.  (Evan Semon/Reuters )

Students gather and reunite with their families at a fast food joint across from Arapahoe High School, after a student opened fire in the school in Centennial, Colorado December 13, 2013.   (Evan Semon/Reuters )

A man puts his arm on a family member who was escorted out of Arapahoe High School.  (Evan Semon / Reuters)

Students gather outside Arapahoe High School, after a student opened fire in the school in Centennial, Colorado December 13, 2013.   (Evan Semon/Reuters)

Local law enforcement patrol the area near Arapahoe High School.  (Bob Pearson/EPA)

Arapahoe County Sheriff Grayson Robinson speaks to the media outside Arapahoe High School.  (Evan Semon/Reuters )

A student and her mother leave a local church after being reunited with following a shooting at Arapahoe High School.  (Bob Pearson/ EPA)

A student and her mother are reunited outside a local grocery.  (Bob Pearson/ EPA)

Two students and a parent leave a local church after being reunited with following a shooting at Arapahoe High School.  (Bob Pearson/EPA)

An Arapahoe County Sheriff patrols outside a local grocery store where parents of students at Arapahoe High School wait to pick up their children.  (Bob Pearson/EPA)

A student and her father leave a local church after being reunited following a shooting at Arapahoe High School.  (Bob Pearson/EPA)

Rescue workers and officers make their way to Arapahoe High School.  (Evan Semon/Reuters )

In this framegrab taken from video by KCNC television news in Denver, students of Arapahoe High School in Centennial, Colorado, line up to be checked by police at a running track on December 13, 2013 after a shooting at the school.   (AFP/Getty Images)

In this framegrab taken from video by KCNC television news in Denver, students of Arapahoe High School in Centennial, Colorado gather at a running track on December 13, 2013 after a shooting at the school.   (AFP/Getty Images)

In this framegrab taken from video by KCNC television news in Denver, students of Arapahoe High School in Centennial, Colorado, line up to be checked by police at a running track on December 13, 2013 after a shooting at the school. Two students were injured in the shooting incident before the suspected gunman apparently killed himself, the local sheriff said. The suspect was also a student. “That individual is .. deceased, he apparently killed himself,” Arapahoe County Sheriff Grayson Robinson told reporters.   (AFP/Getty Images)