A Chicago police officer was killed Wednesday in a close-range exchange of gunfire with a man while investigating a domestic altercation in Gage Park, officials said. The 18-year-old man who allegedly shot the officer received a gunshot wound to his head and remains hospitalized in critical condition.

CWB Chicago has learned that the 18-year-old was arrested last summer after police said he and two other people ran from a car that had just been used in a shooting. The Cook County state’s attorney’s office rejected felony charges against him but approved charges against the other two people. …

Chicago police detectives asked prosecutors to charge the 18-year-old with aggravated battery by discharging a firearm, aggravated unlawful use of a weapon, and criminal trespass to a vehicle, CPD records show. But the state’s attorney’s office rejected those charges, leaving the man to face a single misdemeanor count of resisting police, according to the records.

[Yet again, Chicago has all sorts of gun laws. They just lack prosectors who will apply them when it matters. — Ed]