The theft of a police chief's gun used in a 2009 Illinois murder will be investigated by a special state prosecutor. The Southern Illinoisan reports that a Jackson County judge has signed off on having a prosecutor with the Illinois attorney general's office review the case. Authorities say the gun taken from Carbondale Police Chief Jody O'Guinn's car in 2009 was used months later in the death of Deaunta Spencer of Carbondale. Witnesses said Matthew Jones shot Spencer during an altercation. Police say they found what they believe to be the murder weapon blocks from the scene. Jones pleaded guilty to first-degree murder and was sentenced last year to 35 years in prison.