TAYLOR HERNANDEZ, JOINING US IN THE STUDIO WITH THEIR MESSAGE. TAYLOR. WELL, THAT THIN BLUE LINE WE HEAR ABOUT ALL THE TIME, IT RUNS DEEP ACROSS ALL LAW ENFORCEMENT AGENCIES, ESPECIALLY IN TIMES ...

CHICAGO (CBS) — Four people were killed in a mass shooting on a CTA Blue Line train in west suburban Forest Park on Monday morning. All four victims were passengers on a Blue Line train as it ...