Pedzisa mutsara unotevera: Chiitiko chanhasi chinoratidzira chiverengero chakakwirira zvikurusa chavakafa kusvikira zvino muzvibhakera zvechikoro zveUS kubvira
Kuurayana kwepaColumbine High School muna April 1999. Paiva navanhu 15 vakapfurwa muJefferson County, pedyo neLittleton, Colorado, mukupfura kwaColumbine.