"We don’t need to just see more and more and more before we understand the patterns that exist within this administration and the things this administration allows the police department to do," Livingston, whose group organized the protest, said.
For weeks, protesters on the Magnificent Mile have called on Emanuel to resign following the release of video footage showing a Chicago police officer shooting 17-year-old McDonald 16 times on October 20, 2014.
"Our marches have learned from Baltimore and Ferguson and that’s why they’ve been so wonderfully peaceful and organized and at the same time, impactful and effective," Livingston noted.
Critics and activists argue Emanuel withheld the dash-cam footage showing the repeated shooting of McDonald until late November 2015. He was reelected to a second term as mayor on February 20.
