The stabbing happened in the Lincoln Park neighborhood's 900 block of West Fullerton Avenue at about 5:22 a.m., police said. A 32-year-old man was inside the train when someone stabbed him in the neck.
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The victim was transported to Illinois Masonic Hospital in stable condition, police said. He was not cooperative with officers who responded to the scene.
No one is in custody and Area Three detectives are investigating.
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