Murder suspect in Chicago train mass shooting is ordered held without bond. ‘This defendant defines violent,’ judge says CNNChicago Man Charged in Fatal Shootings of Four Sleeping Train Passengers The New York TimesBlue Line Shooter Killed 4 Riders ‘Execution-Style’ In Unprovoked Attack, Prosecutors Say Block Club ChicagoCTA Blue Line shooting suspect denied pretrial release after 4 killed on train in Forest Park ABC7 ChicagoCourt docs paint chilling picture of fatal CTA train shooting NBC Chicago