Cook County prosecutors said Tuesday they want another agency to look into a homicide case involving Mayor Richard Daley's nephew.
The Illinois State Police a day earlier flip-flopped and said it would longer investigate the 2004 death of David Koschman.
On March 24, Cook County State's Attorney Anita Alvarez requested that independent investigators take a second look at David Koschman's and the way the Chicago Police Department handled the case.
Koschman died about seven years ago during a confrontation on Division Street after a night out. Reports indicate that on the night of April 25, 2004, two groups approached each other and a bump occurred causing a verbal argument.
In one group was Koschman, in the other was Daley's nephew, R.J. Vanecko. Witnesses said Vanecko punched Koschman in the face, making him fall to the ground.
Koschman died 11 days later from a brain injury.
Chicago police dropped the investigation after Koschman's death and closed the case after concluding Vanecko acted in self-defense when he punched Koschman.