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MILLER COUNTY, Mo. — A woman in Missouri is accused of poisoning her husband with antifreeze, placing his body on a bed and setting him on fire so she could marry an inmate.

KMIZ reported that Amy Murray, 40, of Iberia, Mo., faces charges in the death of Joshua Murray, who an autopsy said most likely died from the poison.

Amy Murray faces charges of first-degree murder and armed criminal action. She was jailed in lieu of $750,000 bond.

The suspect was having an affair with an inmate at the Jefferson City Correctional Center where she worked as a nurse, according to documents.

The inmate, 40-year-old Eugene Claypool, has been jailed for more than 18 years in the deadly stabbing of a 72-year-old man.