four passengers killed

A suspect is in custody after a deadly attack on a Chicago-area train left four passengers dead. The horrific incident occurred yesterday as the victims, who were reportedly asleep, were shot in what authorities are describing as a senseless act of violence.

Chicago Police responded to the scene where three of the victims were pronounced dead. The fourth victim, who was critically injured, was rushed to a nearby hospital but tragically succumbed to their injuries shortly after arrival. The identities of the victims have not yet been released, as. . .