nbc 5 nightly update March 20, 2023 8:09 pm NBC 5 Nightly Update: Monday, March 20 Here are the top digital stories you need to know for Monday, March 20. Local 0:35 String of armed robberies downtown overnight 0:26 Nicki Minaj shows love for Chicago pizza during current tour stop 0:53 Chicago ranks among the worst for particle pollution 3:29 Protesters set up tent encampment on Northwestern University campus 0:37 3 Chicago bars named among best in North America in recent '50 Best' list