Schools August 21, 2024 7:51 am School zone safety improvements across Los Angeles Los Angeles Mayor Karen Bass will be unveiling a series of safety improvements for schools across the city. Lauren Coronado reports for the NBC4 News at 5 a.m. on Aug. 21, 2024. US & World Videos 4:19 Los Angeles mourns death of Fernando Valenzuela 2:06 Woman's body found in Costa Mesa backyard 2:02 Downtown businesses look forward to World Series 1:59 Artist reveals details for Fernando Valenzuela mural 3:28 1 arrested during on-campus protest at UCLA