Sun-Times investigation

David Koschman

Who killed David Koschman?

Medical examiner’s office called it homicide, but 7 years later, no charges had been filed.

Nanci Koschman.  |  Sun-Times Media

An anguish that won’t end

Nearly 7 years later, David Koschman’s mom says she’ll never forget her last words to him.

David Koschman's grave at Memorial Gardens Cemetery in Arlington Heights.  |  Sun-Times Media

Witness: Koschman wasn’t the aggressor

Says prosecutors’ conclusion that Koschman “was the aggressor” is a “flat-out lie.”

The police report on the Koschman investigation.

More missing files in Koschman case

CPD’s Internal Affairs Division launches an investigation into how case files disappeared.

Attorney Terence Gillespie follows behind Richard J. "R.J." Vanecko as they leave court after making their first court appearance before McHenry County Judge Maureen McIntyre at Cook County's Rolling Meadows facility on Friday, January 18, 2013. | Sun-Times Media

Missing file: Vanecko was ‘very aggressive’

A police report from 2004 had never made public.

Two-year-old Richard J. "R.J." Vanecko sitting on the lap of his grandfather, Mayor Richard J. Daley, 11 days before the mayor died.

Judge has family ties to Daley machine

Connections to the Democratic Party date back to late Mayor Richard J. Daley.

Jack Higgins cartoon

‘Lost’ Koschman files weren’t lost after all

Report: Key case files were “removed” without authorization.

Reporters Carol Marin, Tim Novak and Chris Fusco.  |  Sun-Times Media

Sun-Times stories brought case to light

Series of stories led to the appointment of special prosecutor and indictment.