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Story summary
- Kerri Aherne, 43, was charged with stabbing a tourist at Macy's Herald Square on December 12, 2025.
- Prosecutors say she bought a kitchen knife at Macy's and attacked the tourist due to voices in her head.
- Aherne pleaded not guilty to attempted murder and other charges.
- A judge ordered she remain in jail and undergo a psychiatric evaluation before her February 11 appearance.
