Jefferson County Schools security officer stands guard at the entrance to Columbine High School on the ten-year anniversary of the Columbine High...
Stephen and Cheyenne Izaguirre, from Austin, Texas, visit the Columbine Memorial, located near Columbine High School, July 22, 2016. Columbine is the...
Police stand outside the east entrance of Columbine High shool as bomb squads and SWAT teams secure students 20 April 1999 in Littleton, Colorado,...科倫拜校園槍擊案, 槍擊案, 校園槍擊案
Crosses with the names of the victims of the Columbine High School shooting sit next to the Columbine Memorial on April 20, 2021 in Littleton,...
Rhianna Chuk,center, holds a rose that she received after expressing her sentiments about the tragedy at Columbine HS. Everyone was writing their...
Officers walk around Columbine High School on April 17, 2019 in Littleton, Colorado. Authorities are looking for a woman from Florida suspected of...
Police patrol outside a locked Columbine High School on April 17, 2019 in Littleton, Colorado, as all Denver-area schools were evacuated and classes...科倫拜校園槍擊案
Faculty members walk into a closed Columbine High School past a flag at half staff in honor of the victims of the Virginia Tech shootings earlier in...科倫拜校園槍擊案
An exterior of the Columbine High School entrance is shown March 22, 2005 in Littleton, Colorado. Jeff Weise, a Red Lake High School student in Red...高中, 明尼蘇達州, 建築物外觀
Two unidentified girls attend a candlelight vigil April 20, 2004 in Littleton, Colorado on the five year anniversary of the Columbine High School...追思晚會
Jim Brinks , Steve Schweltzberger, Ron Aigner, and a woman known only as Golden Eagle stand and pray around the large cross among thirteen small...科倫拜校園槍擊案, 槍擊案
Columbine football coach Andy Lowry congratulated players after beating Bear Creek High School 41-7 in the state 5A championship game on Saturday,...
Students at Columbine High School gather to mourn and remember friends and classmates who were murdered at school by a student in the worst school...
Littleton, CO residents stand near a carpet of flowers 21 April mourning the dead at Columbine High School. Two heavily armed Columbine students...校園槍擊案, 美國, 槍擊案
Denver area residents comfort one another 21 April, 1999 during a candle light vigil at Civic Center Park in Denver, CO. The vigil was held in honor...追思晚會, 科倫拜校園槍擊案
Tim Burdick kneels and hugs Kristin Van Purtfliet, both Columbine students, as the sun sets on the pond at Clement Park near the amphitheater in...
Heather Rosson from Littleton, Colorado hugs her son Daniel as they pay their respects 21 April 1999 to those who died in the Columbine High School...槍擊案, 科倫拜校園槍擊案
High Hopes on a Saturday Afternoon...Dashed; The tears of Columbine High School cheerleaders Holly Henderson, left, and Carol Brandt are...啦啦隊
Dawn Anna, mother of Lauren Townsen, center, talks with family of Dave Sanders as they reflect on the last ten years in the HOPE library, Saturday,...
Eric Benson from Chatfield High, and Jillian Draper from Dakota Ridge High, listen to comments from clergy April 20, 2000 during a candlelight vigil...追思晚會
Jazzy Muñoz is visiting the Columbine Memorial in Clement Park with her father Anthony who survived Columbine High School shooting for the community...
Patty Nielson, an art teacher who was shot in the shoulder at Columbine High School, along side Tom Daschle speaks out for gun control legislation.
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Culver City Middle School participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...學生
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Palo Verde High School student Jake Grosvenor holds a sign outside the school as he participates in the National School Walkout on the 19th...美國
Palo Verde High School student Jake Grosvenor takes a photo of fellow student Eli Duncan outside the school as they participate in the National...
Palo Verde High School students Jake Grosvenor, Eli Duncan, Ainslee Archibald, Mallory McKissick, Raven Green and Sonia Agrebi stand outside the...
Palo Verde High School student Ainslee Archibald holds a sign outside the school as she participates in the National School Walkout on the 19th...
Palo Verde High School students Jake Grosvenor and Eli Duncan hold signs outside the school as they participate in the National School Walkout on the...
Palo Verde High School student Mallory McKissick holds a sign outside the school as she participates in the National School Walkout on the 19th...
Palo Verde High School student Mallory McKissick holds a sign outside the school as she participates in the National School Walkout on the 19th...
Palo Verde High School students Mallory McKissick, Raven Green, Eli Duncan, Nicole Sandberg, Ainslee Archibald and Sonia Agrebi pose outside the...
Students pet a dog near the US Capitol after rallying with several hundred fellow students to call for stricter gun laws in Washington, DC on April...
Students walk away from the US Capitol after rallying with several hundred fellow students to call for stricter gun laws in Washington, DC on April...
Students sit on the wall of the West Lawn of the US Capitol after rallying with several hundred fellow students to call for stricter gun laws in...
Yorktown High School junior Zoe Coutlakis holds a sign on the West Lawn of the US Capitol after rallying with several hundred fellow students to call...
Yorktown High School junior Zoe Coutlakis holds a sign on the West Lawn of the US Capitol after rallying with several hundred fellow students to call...
Students walk down the West Lawn of the US Capitol after rallying with several hundred fellow students to call for stricter gun laws in Washington,...
Students stage a sit-down in Lafayette Square across the White House in Washington, DC on April 20, 2018 to protest gun violence. - Students across...
Students hold up signs to protest gun violence during a walk-out in Lafayette Square across the White House in Washington, DC on April 20, 2018. -...
Students stage a sit-down in Lafayette Square across the White House in Washington, DC on April 20, 2018 to protest gun violence. - Students across...
Students march to the Capitol on Pennsylvania Avenue to call on Congress to act on gun violence prevention during a national walkout on April 20...
Former Columbine High School principal Frank DeAngelis speaks before the candle light vigil during the Vote for Our Lives event at Clement Park...美國
The crowd listens as former Columbine High School principal Frank DeAngelis speaks during the Vote for Our Lives event at Clement Park Amphitheater...
Candle bearers and Columbine High School principal Frank DeAngelis honor the 13 students that lost their lives 13 years ago with students from...
On a windy day, rocks are used to hold down signup sheets during the Vote For Our Lives rally and vigil at Columbine High School on April 19, 2018 in...
Sam Craig, a Chatfield High School student and co-director of Vote For Our Lives, holds up a sign reading $3.94 during a rally and vigil at Columbine...