Columbine high school shooters Eric Harris and Dylan Klebold appear in this video capture of a surveillance tape released by the Jefferson County...
Sign announcing spring break week for Columbine High School students is shown March 22, 2005 in Littleton, Colorado. Jeff Weise, a Red Lake High...
Cross in remembrance of Dylan Klebold, who w. Friend Eric Harris went on shooting spree at Columbine High School killing 13 & ending in their...
Tom Mauser holding poster of son Daniel, who was killed in shooting rampage at Columbine High School in Littleton, at protest outside NRA convention
Dustin Gorton & Brett Kostainick comforting each other days after witnessing shooting rampage by students Eric Harris & Dylan Klebold at Columbine...
Miniature crosses are displayed to commemorate the ten-year anniversary of the Columbine High School shootings at Clement Park April 20, 2009 in...
Sawed off double barrel shotgun, ammuntion clips and an automatic pistol used in the 1999 Columbine High School shooting are displayed in a glass...
State football championship celebrated at Columbine High School in revival of school spirit despite scars left from last April's massacre by student...
Sheriffs John Dunaway & John Stone) showing 3 weapons used by Columbine High School student gunmen Eric Harris & Dylan Klebold in their April assault...
Memorial cross in remembrance of Dylan Klebold, who w. Friend Eric Harris went on shooting spree at Columbine High School killing 13 & ending in...
Cross in remembrance of Dylan Klebold, who w. Friend Eric Harris went on shooting spree at Columbine High School killing 13 & ending in their...
Pres. Bill Clinton students at T.C. Williams High School, presiding over discussion about school violence in wake of massacre at Columbine High...
Person putting flowers on memorial cross for Dylan Klebold, who w. Friend Eric Harris went on shooting spree at Columbine High School, killing 13 &...
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...
Tyler Vielie walks past crosses with the names of the victims of the Columbine High School shooting next to the Columbine Memorial on April 20, 2021...
Patti Nielson, an art teacher at Columbine High School who was grazed by a bullet during the shooting, speaks at a Capitol Hill news conference on...
Cameras are set up as media covers the funeral of Rachel Scott, one of the victims at Columbine High School in Littleton, Colo., where two teenagers...
Mourners gather for memorial to victims at Columbine High School in Littleton, Colo., where two teenagers shot to death 12 students and a teacher...
Adam Kechter holding the state football championship trophy given to him by Columbine High School team which adopted him after his older brother team...
Domestic terrorism squad agent Rich Price framed by chart of Columbine High School cafeteria, working on case of April massacre at school by student...
Participants in memorial for Cassie Bernall carrying 13 crosses in memory of Cassie & 12 other victims of last April's massacre at Columbine High...
Deputy Neil Gardner outside Columbine High School, police officer assigned to school on day of April assault by student gunmen Eric Harris & Dylan...
Flowers & tokens lad at makeshift memorial in remembrance of 13 victims killed by troubled seniors Dylan Klebold & Eric Harris who went on shooting...
Flowers & tokens lad at makeshift memorial in remembrance of 13 victims killed by troubled seniors Dylan Klebold & Eric Harris who went on shooting...
Flowers & tokens lad at makeshift memorial in remembrance of 13 victims killed by troubled seniors Dylan Klebold & Eric Harris who went on shooting...
Cross in rememberance of Dylan Klebold, who w. Friend Eric Harris went on shooting spree at Columbine High School killing 13 & ending in their...
Memorial for 13 victims stands around the graves of three of the Columbine High School shooting victims at Chapel Hill Memorial Gardens April 20,...
Pump action shotgun and assult rifle used in the 1999 Columbine High School shooting are shown on display at the Jefferson County Fairgrounds...
Woman leaves flowers at the Columbine Memorial next to Columbine High School on April 20, 2021 in Littleton, Colorado. Twelve students and a teacher...
Visitor places a candle among flowers at the Columbine Memorial at Clement Park in Littleton, Colorado, during a community vigil for the 20th...
Flowers lie at the center of the Columbine Memorial at Clement Park in Littleton, Colorado, before a community vigil for the 20th anniversary of the...
Three unidentified Columbine High School students look at the 13 crosses memorializing those killed at their school 2 years ago after a memorial...
Dawn Anna Beck, Mother of Lauren Townsend, Columbine Principal Frank DeAngelis, Former U.S. President Bill Clinton and Pastor Gino Geraci sing along...
People hold a small prayer service next to crosses with the names of the victims of the Columbine High School shooting near the Columbine Memorial on...
Police patrol outside Columbine High School on April 17, 2019 in Littleton, Colorado, as all Denver-area schools were evacuated and classes cancelled...
Students from the Santa Monica area participate in a walkout demonstration as part of the National School Walkout for Gun Violence Prevention...
Amit Dadon, a graduate in 2017 from Marjory Stoneman Douglas High School, poses for a photo on the West Lawn of the US Capitol after rallying with...
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 pose for a photo on the West Lawn of the US Capitol after rallying with several hundred fellow students to call for stricter gun laws in...
View of damage to the west entryway to Columbine High School where teen-age gunmen Eric Harris and Dylan Klebold entered the school April 20, 1999 in...
Handout photograph released by the Jefferson County Sheriff's Office shows the outside of the library and cafeteria at Columbine High School after...
Asher Lankow and Lexi Lankow of Denver walk along the outside edge of the Columbine Memorial on the ten-year anniversary of the Columbine High School...
James Dann of Thornton, Colorado pauses at one of the names of the victims of the Columbine High School shootings on the ten-year anniversary at the...
Coni Adams, daughter of slain teacher Dave Sanders, is comforted by her husband Barry April 20, 2001 during a memorial service on the second...
Two people visit a memorial in Clement Park near Columbine High School April 30, 1999 in Littleton, Colorado. The two crosses representing the gunmen...
Marilyn Bell, of Littleton, CO, leaves a flower each for the victims of the Columbine High School shootings in 1999, at a memorial at Chapel Hill...
An unidentified mourner pauses at a memorial that stands around the graves of three of the Columbine High School shooting victims at Chapel Hill...
Richard Castaldo one of the survivors of the 1999 Columbine Shootings arrives at a groundbreaking ceremony in Clement Park not far from Columbine...
Torchbearer Richard Castaldo carries the Olympic Flame during the 2002 Salt Lake Olympic Torch Relay January 31, 2002 in Littleton, CO. Castaldo was...
Sign announcing spring break week for Columbine High School students is shown March 22, 2005 in Littleton, Colorado. Jeff Weise, a Red Lake High...
Littleton, Colorado: Columbine shrine to the fifteen people killed in the Columbine High School massacre. The shrine is on a hill near the school.
An unidentified woman hugs a student as they and others grieve after the Columbine High School massacre, Littleton, Colorado, April 21, 1999.
Littleton, Colorado. Students Of The Columbine High School, Come To Pay Their Respects To Friends They Lost, In The Shooting Spree.
Sign stands in front of Columbine High School April 20, 2004 in in Littleton, Colorado. Today is the five year anniversary of the deadlist school...
Colorado State Attorney General Ken Salazar speaks to the media prior to displaying evidence collected from the 1999 Columbine High School shooting...
Area high school student Kristina Metter weeps during a prayer at a row of thirteen crosses in Robert F. Clement Park in Littleton, CO, April 20,...
Illinois Gov. George Ryan looks towards Illinois State Police Director Sam Nolen, right, as he addresses the media April 20, 2000 at a news...
Rep. Rod Blagojevich sits in front of a poster of a 9mm Stallard handgun, April 20, 2000 at a news conference at the Illinois State Police crime...
Members of the Littleton, Colorado community gather for a candlelight vigil April 20, 2000 in Robert F. Clement Park near Columbine High School to...