(CNN) - Here is a (long) list of shootings at elementary, middle and high schools that have resulted in fatalities in the last 20 years. This list does NOT include suicides, gang-related incidents, or deaths resulting from interpersonal conflicts.
Feb. 14, 2018 - Marjory Stoneman Douglas High School - Parkland, Florida. Former student, Nikolas Cruz, 19, opens fire with an AR-15 rifle, killing at least 17 people and injuring at least 14 others. According to law enforcement, the suspect activated a fire alarm to draw people outside to increase casualties. Cruz is arrested and charged with 17 counts of premeditated murder.
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Jan. 23, 2018 - Marshall County High School - Benton, Kentucky. A 15-year-old male student opens fire killing two and injuring 18 others. The suspect is arrested at the scene.
Dec. 7, 2017 - Aztec Hight School - Aztec, New Mexico. William Atchison shoots and kills students Casey Jordan Marquez and Francisco Fernandez. Atchison, a former student at the high school, died of what police believe to be a self-inflicted gunshot wound.
Sept. 13, 2017 - Freeman High School - Spokane, Washington. One student is killed and three are injured in a shooting. The suspect is a sophomore at the school.
April 10, 2017 - North Park Elementary School - San Bernardino, California. Jonathan Martinez, 8, and his teacher, Karen Smith, are killed when Cedric Anderson, Smith's estranged husband, walks into her special needs classroom and opens fire, armed with a large-caliber revolver. Two other students are wounded. Anderson then kills himself.
Sept. 28, 2016 - Townville Elementary School - Greenville, South Carolina. A 14-year-old male opens fire on the playground, wounding two children and a teacher. Jacob Hall, one of the wounded children, dies three days later. Before going to the school, the teen shot and killed his father. He is in custody.
Oct. 24, 2014 - Marysville-Pilchuck High School - Marysville, Washington. Freshman Jaylen Fryberg shoots five people in the school cafeteria, killing one. Fryberg dies of a self-inflicted gunshot wound at the scene. A second victim dies of her injuries two days later; a third dies on Oct. 31. A fourth victim dies on Nov. 7, bringing the total fatalities to five, including the gunman.
June 10, 2014 - Reynolds High School - Troutdale, Oregon. Jared Padgett, 15, shoots and kills 14-year-old Emilio Hoffman in the school gym. He later takes his own life.
Dec. 13, 2013 - Arapahoe High School - Centennial, Colorado. Karl Pierson, 18, opens fire inside, critically injuring one student and then killing himself. 17-year-old Claire Davis dies on Dec. 21, eight days after being shot.
Oct. 21, 2013 - Sparks Middle School - Sparks, Nevada. 12-year-old student Jose Reyes takes his parent's handgun to school and shoots three, injuring two 12-year-old male students and killing Mike Landsberry, a teacher and Marine veteran. He then kills himself.
Dec. 14, 2012 - Sandy Hook Elementary School - Newtown, Connecticut. Adam Lanza, 20, guns down 20 children, ages 6 and 7, and six adults, school staff and faculty, before turning the gun on himself. Investigating police later find Nancy Lanza, Adam's mother, dead from a gunshot wound. The final count is 28 dead, including the shooter.
Feb. 27, 2012 - Chardon High School - Chardon, Ohio. Student Daniel Parmertor, 16, is killed and four others wounded when student T.J. Lane, 17, opens fire in the school. On February 28, Demetrius Hewlin, 16, dies from his wounds and Russell King Jr., 17, is declared brain dead. In March 2013, Lane is sentenced to life in prison. On Sept.11, 2014, Lane escapes from prison. He is captured early the next morning.
Jan. 5, 2011 - Millard South High School, Omaha, Nebraska. 17-year-old Robert Butler Jr. opens fire on Principal Curtis Case and Vice Principal Vicki Kasper. Butler then kills himself about a mile from the school. Vice principal Kasper later dies at the hospital.
Feb. 5, 2010 - Discovery Middle School, Madison, Alabama. 14-year-old Todd Brown dies after being shot in the head in a school hallway. Fellow ninth-grader Hammad Memon later pleads guilty and is sentenced to 30 years in prison.
Oct. 16, 2009 - Carolina Forest High School, Conway, South Carolina. 16-year-old student Trevor Varinecz is shot and killed by a police officer after allegedly pulling a knife and stabbing the officer.
Aug. 21, 2008 - Central High School, Knoxville, Tennessee. 15-year-old Jamar Siler shoots and kills 15-year-old Ryan McDonald. In 2011, Siler receives 30 years in prison in a plea agreement.
Jan. 3, 2007 - Henry Foss High School, Tacoma, Washington. Student Douglas Chanthabouly, 18, fatally shoots another student, Samnang Kok, 17. Chanthabouly is sentenced in 2009 to more than 23 years in prison for second-degree murder.
Oct. 2, 2006 - Georgetown Amish School, Nickel Mines, Pennsylvania. 32-year-old Charles Roberts IV goes to a small Amish school and takes at least 11 girls hostage. Five girls were killed and six others wounded. Roberts then kills himself.
Sept. 29, 2006 - Weston High School, Cazenovia, Wisconsin. 15-year-old Eric Hainstock goes to school armed with a shotgun and a handgun. After a struggle with the school janitor, Hainstock shoots and kills the school principal. He is convicted of murder in August 2007 and sentenced to life in prison.
Sept. 27, 2006 - Platte Canyon High School, Bailey, Colorado. 54-year-old Duane Morrison takes six female students hostage. When SWAT teams enter the school, Morrison shoots 16-year-old Emily Keyes. Morrison then kills himself. Keyes later dies at the hospital.
Nov. 8, 2005 - Campbell County Comprehensive High School, Jacksboro, Tennessee. 15-year-old Kenneth Bartley Jr. opens fire on a principal and two assistant principals, killing one of them and critically wounding another, authorities said. In 2007, Bartley accepts a plea bargain, but his guilty plea is later vacated. In a retrial in February 2014, Bartley is found guilty of reckless homicide and not guilty of attempted first degree murder. He is sentenced to time served and released.
March 21, 2005 - Red Lake High School, Red Lake, Minnesota. 16-year-old Jeff Weise kills his grandfather and another adult, five students, a teacher and a security officer. He then kills himself.
Sept. 24, 2003 - Rocori High School - Cold Spring, Minnesota. 15-year-old Jason McLaughlin shoots and kills 17-year-old Aaron Rollins and critically injures another student. The second student dies in October. In 2005, McLaughlin is sentenced to consecutive terms of life in prison for first-degree murder and 12 years for second-degree murder.
April 24, 2003 - Red Lion Area Junior High School - Red Lion, Pennsylvania. 14-year-old James Sheets brings a revolver to school and kills his principal, Eugene Segro, and then himself.
March 5, 2001 - Santana High School - Santee, California. 15-year-old Charles "Andy" Williams kills two classmates, a 14-year-old and a 17-year-old, and injures 13. Williams is sentenced in 2002 to at least 50 years in prison.
May 26, 2000 - Lake Worth Community Middle School - Lake Worth, Florida. 13-year-old Nathaniel Brazill, after being sent home for misbehaving, returns to school and shoots and kills his teacher Barry Grunow. Brazill is sentenced to 28 years in prison.
Feb. 29, 2000 - Buell Elementary School - Mount Morris Township, Michigan. An unnamed six-year-old boy shoots and kills a six-year-old playmate, Kayla Rolland, at school. He is removed from his mother's custody and put up for adoption.
Nov. 19, 1999 - Deming Middle School - Deming, New Mexico. 12-year-old Victor Cordova shoots and kills a 13-year-old classmate. He is sentenced to two years in juvenile detention.
April 20, 1999 - Columbine High School - Littleton, Colorado. 18-year-old Eric Harris and 17-year-old Dylan Klebold kill 12 fellow students and one teacher before committing suicide in the school library.
May 21, 1998 - Thurston High School - Springfield, Oregon. After killing his parents the previous day, 15-year-old Kip Kinkel returns to Thurston High armed with a rifle. He kills two students in the school cafeteria, a 16 and a 17-year-old. He is sentenced to 112 years in prison.
April 24, 1998 - James Parker Middle School - Edinboro, Pennsylvania. 14-year-old Andrew Wurst shoots and kills science teacher John Gillette at a school dance. He is sentenced to serve between 30 and 60 years.
March 24, 1998 - Westside Middle School - Jonesboro, Arkansas. 11-year-old Andrew Golden and 13-year-old Mitchell Johnson ambush fellow students and their teachers, killing five. Johnson is incarcerated in a youth facility and released on his 21st birthday Aug. 11, 2005. Golden is released on his 21st birthday, May 25, 2007.
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