The Columbine High School shooting took place on April 20, 1999 , at Columbine High School in Littleton, Colorado, USA.

It was a planned attack carried out by two students, Eric Harris and Dylan Klebold, who killed 13 people (12 students and 1 teacher) and injured more than 20 others before taking their own lives. The event has since become one of the most widely discussed school shootings in U.S. history and is often referenced in conversations about school safety, youth violence, and gun laws.

Information gathered from public forums or data available on the internet and portrayed here.