Chicago Police Superintendent Eddie Johnson announced Thursday that he’s retiring after more than three years as the city’s top cop, a post he took over during one of the most violent chapters in the city’s history and amid public outcry over the release of a video showing an officer shooting a black teen 16 times.

During a news conference in which Johnson announced his retirement, Mayor Lori Lightfoot said he’d agreed to serve through the end of the year. A successor hasn’t yet been named.

“These stars can sometimes feel like you’re carrying the weight of the world,” said Johnson, whose uniform includes four stars on each shoulder. “This job has taken its toll, taken a toll on my health, my family, my friends.”

Chicago Police Department Supt. Eddie Johnson looks back at his wife and 10-year-old son as he announces his retirement during a press conference at CPD headquarters, Thursday morning, Nov. 7, 2019.  (Ashlee Rezin Garcia/Chicago Sun-Times via AP)
Chicago Police Department Supt. Eddie Johnson looks back at his wife and 10-year-old son as he announces his retirement during a press conference at CPD headquarters, Thursday morning, Nov. 7, 2019. (Ashlee Rezin Garcia/Chicago Sun-Times via AP)

Johnson, who joined the force as a patrolman in 1988, signaled earlier in the week that he was mulling retirement because he wanted to spend more time with family. He said the decision would have nothing to do with an investigation into a recent incident in which he was found asleep behind the wheel of his SUV at a stop sign and his admission to Lightfoot that he’d had a “couple of drinks with dinner” that night.

Johnson, a native Chicagoan, held just about every rank in his more than three decades career on the force. He was named superintendent in 2016 by then-Mayor Rahm Emanuel, who had fired Superintendent Garry McCarthy after the release of the now-infamous video of Officer Jason Van Dyke fatally shooting 17-year-old Laquan McDonald. Johnson, then the interim chief, hadn’t even applied, but Emanuel eschewed the recommendations of the police board and chose him.

Chicago Police Department Supt. Eddie Johnson announces his retirement during a press conference at CPD headquarters in Chicago, Thursday, Nov. 7, 2019 in Chicago. (Ashlee Rezin Garcia/Chicago Sun-Times via AP)
Chicago Police Department Supt. Eddie Johnson announces his retirement during a press conference at CPD headquarters in Chicago, Thursday, Nov. 7, 2019 in Chicago. (Ashlee Rezin Garcia/Chicago Sun-Times via AP)

Johnson inherited a department that was in the midst of what seemed like a running gun battle on the streets as rival gangs and drug dealers shot it out for control of the streets. By the end of his first year on the job, the city saw thousands of shooting incidents, the number of dead totaled nearly 800 — or 300 more than just the year before.

The next year things improved, but the street warfare had become a national media story and even the reports that the number of homicides had dropped to 664 all seemed to include the reminder that the number was higher than the combined total of homicides of New York and Los Angeles.

FILE - In this Oct. 28, 2019 file photo, Chicago Police Supt. Eddie Johnson speaks in Chicago. Johnson will announce his retirement after more than three years leading the department he joined as a patrolman in 1988. Johnson and Mayor Lori Lightfoot will make the announcement at a news conference at 10:45 AM Thursday, Nov. 7, 2019. (AP Photo/Charles Rex Arbogast File)
FILE – In this Oct. 28, 2019 file photo, Chicago Police Supt. Eddie Johnson speaks in Chicago. Johnson will announce his retirement after more than three years leading the department he joined as a patrolman in 1988. Johnson and Mayor Lori Lightfoot will make the announcement at a news conference at 10:45 AM Thursday, Nov. 7, 2019. (AP Photo/Charles Rex Arbogast File)

Johnson set out to beef up his force, presiding over an effort to hire more officers that has increased the size of the force by about 1,000. Under his leadership, the city also dramatically expanded the use of high-tech crime-fighting technology that allows officers to know almost immediately where shots are coming from, install scores more surveillance cameras and embark on the largest rollout of police body cameras in the United States.

As the McDonald case was advancing in court, Johnson also looked for ways to restore public confidence that had been shattered by the shooting and allegations that Van Dyke’s supervisors and fellow officers had made a concerted effort to keep secret what happened that night in October 2014.

The McDonald shooting and the arrest of Van Dyke — the first police officer to be criminally charged in an on-duty shooting in decades — shined a light on a police force where officers are rarely disciplined for misconduct or officer-involved shootings.

In a blistering report, the U.S. Justice Department found a long history in the department of racial bias and excessive force by officers. That led to wholesale changes in the way offices are investigated and last year the implementation of a federal consent decree that calls for more community policing, better officer training and a requirement that officers fill out paperwork every time they point a gun at someone, even if they don’t fire.

Johnson’s willingness to show his human side helped him weather difficult times and endeared him to both his department and the city. He became emotional when he faced the press to talk about the shooting death of a longtime commander, and close friend, Paul Bauer. He showed his anger when he announced the arrest of actor Jussie Smollett, casting what he said was Smollett’s staged racist attack as an attack on the city itself. And he had the city rooting for him when he had a kidney transplant.