Last Updated Dec 9, 2015 11:04 AM EST
CHICAGO -- Chicago Mayor Rahm Emanuel apologized for the 2014 shooting of a black teenager Wednesday during a special City Council meeting that he called to discuss a police abuse scandal at the center of the biggest crisis of his administration, and promised "complete and total" reform to restore trust in the police.
The crisis comes amid fallout over the release of a video showing white Officer Jason Van Dyke shooting 17-year-old Laquan McDonald, who appeared in the video to be walking away from Van Dyke. Van Dyke is charged with first-degree murder.
Emanuel addressed three main themes in his passionate speech: justice, culture and community. He also criticized the police department, which is being investigated by the U.S. Department of Justice, for being quick to shoot, saying the department's "supervision and leadership," as well as the oversight agencies, failed.
"I take responsibility for what happened because it happened on my watch. And if we're going to fix it I want you to understand it's my responsibility with you," Emanuel said. "But if we're also going to begin the healing process, the first step in that journey is my step.
"And I'm sorry."
The mayor also spoke of residents' mistrust of Chicago police, saying it's unacceptable that there are parents in Chicago who feel they must warn their children to be wary of officers.
"We have normalized gun violence," Emanuel said, noting the city's gang problem.
At least four different groups of protesters planned to converge on City Hall on Wednesday. A protester who was at City Hall before Emanuel's speech said the mayor must step aside.
"If he doesn't step down, there are going to be protests again and again," said Jim Rudd, a 25-year-old coffee shop worker. "And he's going to eventually lose the support of the City Council."
The McDonald footage - ordered to be released by a judge last month and made public hours after Van Dyke was charged - set off a chain of events that captured the attention of the country. Days of protests and marches followed, including one on the busiest shopping day of the year that partially shut down the city's most famous shopping district, Michigan Avenue.
A few days later, Emanuel announced that he had demanded and received the resignation of Police Superintendent Garry McCarthy, created a new task force for police accountability and expanded the use of body cameras.
But the anger did not subside, and every day there seemed to be another issue, including the release of hundreds of pages of documents that show police had described in their reports a far more threatening McDonald than the teen shown to the city and the world on video.
The situation became so volatile that Emanuel was forced to do something he rarely does: backtrack. After initially saying that a federal probe of the department would be "misguided" because the U.S. Attorney's Office was already examining the McDonald shooting, Emanuel later said he welcomed such an investigation.
On Monday, U.S. Attorney General Loretta Lynch announced a Justice Department civil rights investigation to determine if there are patterns of racial disparity in the police department's use of force.
Emanuel then said the city would stop fighting the release of a second video that showed a police officer shooting a man in the back. That video was released Monday during a presentation in which Cook County State's Attorney Anita Alvarez said she would not charge the officer.
Later that night, the city released yet another video showing an inmate being dragged out of his cell by his handcuffed wrists. While a police review board previously found the officers' actions justified, Emanuel said he did not see how the treatment of the man - who later died following a reaction to an antipsychotics drug - could "possibly be acceptable" and said he did not consider the investigation closed.