Protesters shouted slogans such as "black lives matter" and "it is our duty to fight for our freedom" as they marched.
After the verdict, protesters and activists gathered outside the courthouse and marched through the city's downtown for hours.
Protests in St. Louis turned violent as darkness set in Friday, with at least four cops assaulted and numerous demonstrators maced following the acquittal of a white officer in the shooting death of an African-American drug suspect.
"The days have been calm and the nights have been destructive", Mayor Lyda Krewson told a news conference after Sunday's unrest, adding that "destruction can not be tolerated". Barricades went up last month around police headquarters, the courthouse where the trial was held and other potential protest sites.
Roorda said he was disappointed in elected leaders not doing more to urge peace.
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The House passed a version of the bill in December 2010, but the measure failed to garner the needed votes in the Senate. Veterans of past House efforts to negotiate a bipartisan deal on immigration reform, are also on board.
The statement also said that multiple businesses also sustained property damage and one bike officer suffered a serious injury after falling.
Protestors also threw bricks and water bottles at the officers.
Black people in some USA states are still deprived of basic human rights and are considered sub-human, a researcher and historian in Washington says.
The officer's DNA was on the weapon but Mr Smith's wasn't.
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The iPhone maker reported $1.67 earnings per share for the quarter, topping the Zacks' consensus estimate of $1.57 by $0.10. In addition, Apple took the wraps off a new Apple Watch with cellular capabilities, called Apple Watch Series 3.
Although the daytime demonstrations were mainly peaceful, after dark protesters clashed with riot police and there were reports of vandalism and property damage.
More protests are expected Monday, three days after a judge cleared ex-officer Jason Stockley in the 2011 shooting death of 24-year-old Anthony Lamar Smith.
More than 40 people have been arrested.
Organizers of a peaceful march in University City on Saturday called on people to leave and reconvene Sunday afternoon.
A gun was found in Smith's vehicle, but prosecutors alleged Stockley planted it there. Protesters, though, say Smith was shot following a auto chase - and that the former officer had planted the gun.
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The CBS late-night host had promised a political show, and his opening number did include jabs at negative news headlines. Westworld and Stranger Things , the latter of which had 18 nominations going in, were both shut out tonight.
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