CHICAGO -- Protesters marched through the city Tuesday night chanting "16 times." That's how many times Laquan McDonald was shot.
The protests started shortly after the dash-cam video of his death was released.
A group started walking near the UIC campus then headed east on Roosevelt, making their way through the Loop, stopping and blocking intersections along the way.
Some protesters made their way to the entrance to the Eisenhower -- blocking access to the expressway.
The protests were mostly peaceful, but there were some shoving matches as tensions rose.
Including when police blocked protesters from accessing Lake Shore Drive.
Three protesters were detained and released overnight.
A fourth was arrested and charged with a felony this morning.
Police say 22-year-old Malcolm London hit an officer near Balbo and Michigan Avenue.
London is a leader within the black youth project.
The officer was treated and released with non-life-threatening injuries.