<P> The Columbine High School massacre was a school shooting that occurred on April 20 , 1999 , at Columbine High School in Columbine , an unincorporated area of Jefferson County in the American state of Colorado . In addition to the shootings , the complex and highly planned attack involved a fire bomb to divert firefighters , propane tanks converted to bombs placed in the cafeteria , 99 explosive devices , and carbombs . The perpetrators , senior students Eric Harris and Dylan Klebold , murdered 12 students and one teacher . They injured 21 additional people , and three more were injured while attempting to escape the school . The pair subsequently committed suicide . </P>
<P> The Columbine High School massacre was a school shooting that occurred on April 20 , 1999 , at Columbine High School in Columbine , an unincorporated area of Jefferson County in the American state of Colorado . In addition to the shootings , the complex and highly planned attack involved a fire bomb to divert firefighters , propane tanks converted to bombs placed in the cafeteria , 99 explosive devices , and carbombs . The perpetrators , senior students Eric Harris and Dylan Klebold , murdered 12 students and one teacher . They injured 21 additional people , and three more were injured while attempting to escape the school . The pair subsequently committed suicide . </P>
who was the shooter at columbine high school
who was the shooter at columbine high school
Eric Harris Dylan Klebold
Eric Harris Dylan Klebold