Oklahoma law enforcement arrested a 48-year-old woman Tuesday and charged her with the stabbing death of her husband on Sunday, the Oklahoma State Bureau of Investigation (OSBI) said.

Shonda Johnson-Williams is charged with first degree murder in the death of Jamie Williams, also 48, in Fort Towson.

Choctaw County Sheriff Terry Park wrote on Facebook that Johnson-Williams called deputies to report that her husband was dead inside their home. Paramedics confirmed Williams was dead on the scene.

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The sheriff’s office asked the OSBI to investigate and sent Williams’ body to Tulsa for an autopsy.

OSBI and deputies arrested Johnson-Williams after the medical examiner determined Williams died of a stab wound. Her bond will be set when she is arraigned.

Neither the bureau nor the sheriff’s office explained Johnson-Williams’ huge smile in her mugshot.

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[Featured image: Shonda Johnson-Williams/Oklahoma State Bureau of Investigation]