ABC 7 Chicago on Instagram: "Video shows students sheltering in a room at Brown University during an active shooter situation on Saturday before police enter and escort them out. A person of interest was taken into custody early Sunday in connection with the fatal mass shooting. Tap the link in our bio for more."

Horrifying History on Instagram: "A Chicago mother was fatally shot while visiting the memorial for her 14 year old son who had been killed on that same block just days earlier. Thirty one year old Delisa Tucker was walking to light candles for her son when someone opened fire, hitting her on the sidewalk. Her son Kevin had been shot several times in the exact spot she was visiting and police have not said if the two shootings are connected. Friends say Delisa was a loving mother who was simply