Investigations

A city agency tasked with reviewing Chicago police misconduct complaints failed to complete an investigation into a high-ranking cop years ago and has declined to finish it now, documents obtained by the Tribune show.

In the wake of Tribune's "Stalled Justice" investigation, there are hints of progress in slow Cook County court system but enormous challenges remain.

A Chicago police officer has been charged with aggravated battery for allegedly striking an eighth grade boy during an off-duty visit to a school.

In May 2021, a former Chicago Blackhawks player filed a negligence lawsuit against the organization alleging team officials swept his 2010 sexual misconduct complaint against then-video coach Bradley Aldrich under the rug.

A lenient plea deal in a long-running murder case raises issues of fairness and transparency in the office of Cook County State’s Attorney Kim Foxx.

Six months after the Chicago Tribune's “Stalled Justice” investigation, the Cook County courts say they will start tracking the reasons cases get delayed.

A strong universal support system can go a long way in reducing physical restraint or time out incidences, experts say.

A toddler's 2011 death highlights a contrast in Cook County courts: A civil suit filed by his estate was concluded years ago, but the criminal courts have yet to try his mother on murder charges.

One month after the death of James Lewis, the sole suspect in the 1982 Chicago Tylenol murders, authorities have released two videotaped FBI interviews from an undercover sting operation.

With the 40th anniversary of the 1982 Tylenol case approaching, the Tribune launched an in-depth investigation into why the murders that both terrified and fascinated the country have never been solved.

James Lewis, the lone suspect in the 1982 Tylenol murders, was found dead Sunday at his home in suburban Boston, according to law enforcement.

As Cook County courts fail to address delays that erode justice, a neighboring system in Kane County shows reform is in fact possible.

A federal court hearing on Thursday could finish a case that began in 1969, in the era of Mayor Richard J. Daley.

Foes of school-based ticketing promise to keep pushing to change Illinois law to protect students and families from costly fines.

The Tribune's three-part series delves into the I-55 dust storm crash that left eight dead and dozens injured.

As a Chicago cop, Jeffrey Kriv was investigated numerous times. But not until an outside agency looked into his traffic tickets did he lose his badge.

Climate change is bringing more extreme heat to Chicago. Explore community trends with interactive maps showing the city's hotter areas.

Satellite data on land surface temperatures made it possible to identify the historically hottest areas in Chicago.

Chicago's areas of extreme heat have higher numbers of Latino residents, while white residents disproportionately occupy the coolest areas.

In addition to analyzing lead testing results at Illinois schools, the Tribune surveyed districts on what steps they took following the testing.

Flaws in an Illinois law that required testing schools' water for lead have weakened its ability to protect children.

Two programs recently launched to cover mitigation costs for Chicago day care centers still undergoing testing and repairs. Other places are mostly out of luck.

Schools across Illinois tested their water for lead because of a 2017 Illinois law. Find the results here.

According to a Tribune analysis of state data, more than 1,800 of the roughly 2,100 public schools that submitted test results identified some amount of lead in their drinking water.

When Illinois legislators passed a law requiring schools to test their water for lead, they provided no funding for the repairs needed to reduce children's exposure.