Protesters clogged Chicago's downtown shopping district and tried to block store entrances on a soggy Black Friday, calling for police officials to step down as city leaders pleaded for calm.
"What do we want? Justice. When do we want it? Now!" chanted a wave of marchers, which included the Rev. Jesse Jackson.
The demonstration kicked off around 11 a.m. CT (noon ET), as the crowd carried umbrellas and plastic-wrapped signs along the upscale Magnificent Mile, which on a typical post-Thanksgiving Friday would be mobbed with shoppers.
Some of the hundreds of demonstrators tried to block entrances of stores, while police formed human barriers in front of other locations, according to NBC Chicago.
"Find the door! Shut it down!" some protesters said.
The disruption was in response to the release this week of dashcam footage of 17-year-old Laquan McDonald as he was shot by police 16 times in October 2014. Chicago police Officer Jason Van Dyke, 37, turned himself in Tuesday and was ordered held without bond on a charge of first-degree murder.