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More than 90% of individuals in the gang database are people of color, according to Chicago Inspector General Joe Ferguson, who says that puts a strain on police-community relations. “There’s an extraordinary adverse effect on certain communities.”

Chicago Department of Public Health Commissioner Julie Morita appears on “Chicago Tonight” on April 11, 2019.

Dr. Julie Morita is moving on after two decades at the Chicago Department of Public Health. She tells us about her future plans, and discusses current threats to the city’s health.

(Kristen Thometz / Chicago Tonight)

A $9.1 million gift will help the University of Chicago expand its efforts to treat the social, psychological and medical needs of young trauma patients and their families.

Identical twin brothers retired astronaut Mark Kelly, left, and Scott Kelly (Robert Markowitz / NASA)

A groundbreaking study concludes that human health can be “mostly sustained” for a year in space, a key finding that figures to help NASA with its mission of sending humans to Mars within two decades.

Left: Nathan Leopold, soon after his arrest. (Chicago Daily News photo courtesy of the Chicago History Museum)

In all the attempts to dissect the Leopold and Loeb story, one mystery remains unsolved: What happened to the vast bird collection that Nathan Leopold had in his Chicago home when he went to prison?

They play a key role in court proceedings, but industry experts say there aren’t enough of them. What it takes to become a court reporter – and why some say it’s a good alternative to a four-year degree.

Author James Forman Jr. talks about his Pulitzer Prize-winning book, “Locking Up Our Own: Crime and Punishment in Black America.”

Actor Jussie Smollett talks to the media before leaving Cook County Court after his charges were dropped, Tuesday, March 26, 2019. (AP Photo / Paul Beaty)

City officials have made good on their threat of legal action against Jussie Smollett, filing a civil lawsuit that seeks to recoup the cost of a police investigation into what they believe was a staged attack the actor orchestrated on himself.

Scales in spades: See more than 200 species this weekend at ReptileFest. (Pexels / Pixabay)

We get up close and personal with some cold-blooded creatures ahead of the nation’s largest educational reptile show.

Watch the April 11, 2019 full episode of “Chicago Tonight.”