Chicago police are asking for help identifying the man who stabbed a CTA passenger on a Blue Line platform over the weekend on the Near West Side.
Police said around 11:15 p.m. on Saturday, the man pulled a large knife out of his backpack while on the platform at the UIC-Halsted stop on the Blue Line, walked up to a female sitting on a bench, and stabbed her in the chest.
The man then fled the platform and headed north on Morgan Street…