 Nyorai kuenderera mberi kwechikamu chino - Musi wa 7 Chivabvu 2019, vadzidzi vaviri vakatanga kupfura pa STEM School Highlands Ranch, vakauraya mudzidzi mumwe uye vakakuvadza vamwe vasere. Chikoro chacho chiri pedyo neColumbine High School, uko kwakaitikawo kupfura kwakafanana, kwakauraya zvikurukwakaitika muna 1999. 