 Nyorai kupfuurira kweiyi ndima - Muna December 2009, vaduku vaviri, mudzidzi ane makore 16 okuberekwa wokuBridgewater-Raritan uye mudzidzi ane makore 17 okukura wokuImmaculata High School iri pedyo, vakasungwa vachinzi vane chokuita nechiitiko cheColumbine-sechirongwa chokurwisa chikoro. 