US shocker: Four people killed in gunfire on public transit train outside Chicago, suspect arrested

Three people were declared dead at the Forest Park station, a stop on the Chicago Transit Authority's Blue Line, while fourth victim died at a hospital

source https://www.livemint.com/news/world/us-shocker-four-people-killed-in-gunfire-on-public-transit-train-outside-chicago-suspect-arrested-11725294159307.html