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Researchers from Northwestern University and the University of Chicago found that Chicago police officers with the highest number of complaints are responsible for a significantly higher share of civil litigation payouts.

Speakers at The Atlantic’s “Disrupting Alzheimer’s” event on Wednesday, Sept. 12, 2018. (Kristen Thometz / Chicago Tonight)

Despite the prevalence of Alzheimer’s disease, researchers, caregivers and advocates are optimistic about the future. “I see a treatment, it’s going to happen,” said William Klein, a professor at Northwestern University.  

UIC bioengineering professor Ian Papautsky and Erin Haynes of the University of Cincinnati Department of Environmental Health present a sensor that will conduct rapid testing for human exposure to toxic metals. (Courtesy University of Cincinnati)

If successful, the portable, smartphone-sized sensor will measure human exposure to toxic metals like lead and manganese using a single finger prick of blood  – and deliver results in minutes.

A viewer spots a Blue Island building with an image of three chain links on its facade. Geoffrey Baer has the scoop on the odd fellows behind that insignia in this encore edition of Ask Geoffrey.

From left: Special prosecutor Joe McMahon, attorney Daniel Herbert and his client, Chicago police Officer Jason Van Dyke, attend a hearing on Sept. 4, 2018 concerning the shooting death of Laquan McDonald. (Antonio Perez / Pool / Chicago Tribune)

The lead attorney for Chicago police Officer Jason Van Dyke says it’s too early to decide whether he will opt for a jury or bench trial. Meanwhile, day two of jury selection brought the total number to 10.

DJ Casper of “Cha-Cha Slide” fame. (Chicago Tonight)

Meet the South Side native whose line dance became a worldwide phenomenon.

Apple says its new iPhone Xs and iPhone Xs Max are splash- and water-resistant rated IP68 and protect against everyday spills including coffee, tea and soda. (Courtesy Apple)

Longtime Apple watcher and former Chicago Sun-Times columnist Andy Ihnatko weighs in on the tech giant’s newest offerings.

Gov. Bruce Rauner and J.B. Pritzker appear on “Chicago Tonight” on Aug. 14, 2017 and March 14, 2018, respectively.

Campaigns are buying TV ads, web banners, and producing a wealth of videos for social media, and they’re using technology to target voting blocs with ever-increasing precision.

From left: Chicago rappers The Boy Illinois and Phenom star in “Tearz,” adapted from Wu Tang Clan’s hit single off their 1993 debut album “36 Chambers,” premiering as part of Collaboraction’s “Peacebook” Austin line-up. (Credit: Joel Maisonet)

Tap, rap, and a whole lot more when Collaboraction’s performance festival visits the West Side.

Watch the Sept. 12, 2018 full episode of “Chicago Tonight.”

(Courtesy of Chicago Turkish Festival)

Punk rock bands, tons of tacos, cultural celebrations, butterflies and yoga usher in the weekend. Here are 10 things to do in and around Chicago.

U.S. Rep. Luis Gutierrez announces Wednesday, Sept. 12, 2018 that he will not run for Chicago mayor. (Chicago Tonight)

There may soon be tidal waves in the race for Chicago mayor, should Cook County Board President Toni Preckwinkle run, or should County Commissioner Jesus “Chuy” Garcia take a second shot at the city’s top job.