coronavirus July 16, 2020 9:56 pm HVAC Systems Could Cause COVID-19 to Spread More Quickly in Schools Some studies show indoor air conditioning can spread COVID-19 more quickly. News4’s Aimee Cho has what parents need to know. Local 3:36 DC police clearing out George Washington U. protest encampment 2:31 DC police increase reward, call for peace after 3-year-old fatally shot 1:59 Cottage City becomes first in Maryland to install stop sign cameras 0:52 Montgomery County police hold vigil for fallen officers 26:00 Mother fights against fentanyl abuse: The News4 Rundown