Chicago's River North neighborhood was apparently a scene of chaos overnight. One man died and three others are fighting for their lives after what reports are calling a shootout. The suspects, who reportedly approached the men on foot, fired multiple rounds before fleeing in an unknown vehicle. And the Windy City is scrambling for answers as the investigation unfolds.RELATED: Popular TikToker Tea Tyme Arrested After Allegedly Fatally Striking Pedestrian While Livestreaming & Driving (VIDEO)Security Guard Among Four Shot In Chicago OvernightAround 2:30 a.m.