She was discovered in the bedroom of a home in the 7700 block of South Trumbull Avenue, in the Ashburn neighborhood, Chicago police said.
The 20-year-old female victim had a stab wound to the throat, police said.
She was taken to Christ hospital, where she was pronounced dead.
A person of interest was being questioned, Chicago police said.
Police continue to investigate. No further information was immediately available.
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