Darren O’Brien

Richard "R.J." Vanecko, a nephew of former Mayor Richard M. Daley, has pleaded guilty to involuntary manslaughter in the 2004 death of David Koschman. (Credit Chicago Police/CBS)

Prosecutor Who “Threw Away” Koschman File Resigns

The prosecutor who declined to charge former Mayor Richard M. Daley’s nephew in the killing of David Koschman — and apparently “threw away” the case file — has left the Cook County state’s attorney’s office.

02/11/2014