Updated

A woman in Kansas was arrested Sunday after police said she decapitated her ex-boyfriend's grandmother before leaving the bloody remains in a garage.

The body of Micki Davis, 63, turned up in the garage of Rachel Hilyard's home in Wichita, according to police.

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Davis went to the home with her 9-year-old grandson just before 1:30 p.m. to pick up her son's belongings.

Hilyard, 35, who used to date Davis' son, allegedly started assaulting Davis with the child there, KAKE reported. The boy ran away with his grandmother's cellphone as the attack was happening and called 911.

When officers arrived, the boy directed them to the home. No one answered the door, but they shortly found Davis' body in the garage. Hilyard was later found hiding in her home, KAKE added.

Hilyard was arrested and faces first-degree murder charges, according to police.