Diagrams of events at Columbine High School

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English: Diagrams of events at Columbine High School, during the Columbine High School massacre
Español: Los esquemas de eventos en la Escuela Secundaria de Columbine, durante la Masacre de la Escuela Secundaria de Columbine

Columbine High School/Escuela Secundaria de Columbine[edit]

Outside Events/Eventos fuera de la escuela[edit]