Good Samaritan chases off knife-wielding attacker at Blue Line station

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CHICAGO -- A witness became a Good Samaritan after seeing a man snatch a woman’s phone and slash her face early Friday morning at a Loop CTA station.

Steven Lucas, 25, was headed home after his shift as a bartender when he saw the attack on a platform at the Clark and Lake Blue Line station.

Lucas followed the suspect while calling police, grabbing a 'Wet Floor' sign to protect himself.

He cornered the suspect until police arrived.

A knife and the woman’s phone were recovered from the 48-year-old suspect. Charges have not yet been filed.

The 23-year-old victim was treated at Northwestern Memorial Hospital.

Lucas tells WGN News another bystander told him to leave it alone, but he couldn’t seeing the woman bleeding.

He says he was doing what anybody should do in that situation.