The high court had been asked to issue an injunction that would have blocked the year-old law, which prohibits the possession, manufacture or sale of semiautomatic rifles and high-capacity magazines.
On Monday evening, the Illinois state Senate passed an assault weapons bill with some changes to the version passed by the House on Friday. The bill will now return to the House for a concurring vote before heading to the governor’s desk.
Lake County State s Attorney Eric Rinehart added his voice Thursday to those urging state legislators to pass a ban on so-called assault weapons before the legislative session ends next week.
Fourteen people, including three children, were shot in the drive-by mass shooting on the city's West Side. Another woman trying to flee the scene was struck by a vehicle as she was crossing a street, police said.