Rhanni S. Davis, a 30-year-old man, has been charged with four counts of first-degree murder following the execution-style shooting of four passengers on a Chicago Blue Line train. The incident occurred early on Labor Day morning in Forest Park, Illinois, where the victims, believed to be homeless, were shot while sleeping at close range in two different train cars. Three victims, identified as Margaret A. Miller, 64, Simeon Bihesi, 28, and Adrian Collins, 60, died at the scene, while a fourth victim has not yet been named as authorities are still notifying his family. The police apprehended Davis about 90 minutes after the shooting, aided by surveillance footage, and recovered the weapon used in the crime. Officials described the shooting as a random and isolated act, with no motive established yet. Forest Park Mayor Rory Hoskins called it a 'horrific, heinous and inexplicable act of violence' and emphasized that such incidents are uncommon on public transit.