Halloween September 9, 2020 6:41 pm LA County Revises Trick-Or-Treating Guidelines, But Advises Against the Activity Halloween guidelines were revised, but trick-or-treating is not advised. Patrick Healy reported on NBC4 News at 4 p.m. on Wednesday, Sept. 9, 2020. US & World Videos 11:46 The Rundown: Friday May 3, 2024 3:18 What's new at the LA County Fair 0:32 1 killed in downtown LA warehouse shooting 1:04 Metro warns of possible delays due to sickout 0:31 Long spear found at murder scene in Santa Ana