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CHICAGO — Chicago police Supt. David Brown held a press conference following two days of violence in the city.

At least 21 people have been shot, two fatally, since 4:30 p.m. Monday, two armed robberies happened within an hour of each other in Uptown Tuesday night, and it was confirmed to WGN on Tuesday that time off for officers is cancelled in the week leading up to Memorial Day weekend.

Brown went into detail on two recent events, explaining how CPD investigations show both were gang-related and what led up to each exchange of gunfire.

“I’m not sure what happened to this city,” resident Tonia Johnson said. “I have not see so much crime over the last four to five, six years in this city. I been here all my life and it’s never been this bad.”