CROWLEY, La. (AP) — Deputies say a 24-year-old Rayne woman engaged to marry the father of a 3-year-old boy whose May death was ruled a homicide has been arrested in the child's death.

The Advocate reports Acadia Parish deputies booked Brittany Marie Prejean Wednesday with first-degree murder in the death of Keaghyn Parsons, of Lake Arthur.

Maxine Trahan, a sheriff's office spokeswoman, says investigators determined Parsons was fatally injured while visiting his father, who left the child in Prejean's care May 19 while he went to work.

The Calcasieu Parish Coroner's Office ruled Parsons' death a homicide in June.

Trahan says his autopsy revealed a perforation in his small intestine was caused by blunt force to the stomach.

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