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A University of Florida student is accused of killing his mother in Polk County.
The sheriff's office announced yesterday that Emmanuel Espinoza stabbed his 46-year-old mother to death on Saturday at her home in Frostproof.
The 21-year-old Espinoza is a pre-med student at UF.
Deputies say he confessed to killing her because she "got on his nerves."
He's charged with first-degree murder.