A drive-by shooting outside a lounge in downtown Chicago has left four people dead and 14 injured. The attack occurred in the River North area during a private event hosted by rapper Melo Buckzz. Victims, mostly aged 21 to 32, include both men and women. At least three are critically injured. Police recovered two types of shell casings, suggesting multiple shooters. No arrests have been made, and authorities are reviewing CCTV footage. The lounge will remain closed during the investigation.