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Authorities in Tennessee say a woman found stabbed to death Wednesday is the great-niece of Johnny Cash. 

Courtney Cash was the granddaughter of Johnny's brother, Tommy Cash.  Courtney's body was found stuffed inside a large wooden box in her home in Baxter. 

Putnam County Sheriff David Andrews says the woman's boyfriend was also stabbed, and was hospitalized in Nashville.   Police have a suspect in custody, who has been charged with first-degree murder. 

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