Maryland September 12, 2024 10:19 am Some DC-area schools on alert after social media threats None of the threats have been deemed credible. News4’s Joseph Olmo reports. Local 1:49 Hotel agrees to increase security after string of crimes 1:43 Residents displaced from Columbia Heights apartment building after explosion 2:40 Thousands of DC bus lane tickets going unpaid 22:10 Apartment building closed after explosion: The News4 Rundown 3:12 Missing Manassas Park mom's husband denied bond