Santa Clarita August 22, 2021 11:32 am Driver Hits Vaccine Workers in Santa Clarita Investigators are looking for the man behind the brazen attack on two workers at a Santa Clarita COVID-19 vaccination clinic. Christine Kim reports for NBC4 News at 11 p.m. on August 21, 2021. US & World Videos 2:57 Pro-Palestinian vigil and march for Gaza in Pasadena 1:57 Pedestrian killed in multi-vehicle crash in Hollywood 7:28 Tensions rise as UCLA protest continues 2:42 Executive staff to LA County DA accused of mishandling confidential police files 2:58 UC Irvine students launch solidarity encampments