Rachael Hilyard KWCH

WICHITA, Kan. -- A Kansas woman has been arrested in the decapitation killing of her ex-boyfriend’s mother whose 9-year-old grandson called 911 after fleeing from the attack.

KAKE-TV reports that 63-year-old Micki Davis was killed Sunday afternoon. A 35-year-old Wichita woman has been jailed without bond in Sedgwick County on suspicion of first-degree murder.

CBS affiliate KWCH identified the suspect as Rachael Hilyard.

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Lt. Todd Ojile says the grandmother was attacked after she took her grandson to a home to collect property that belonged to the victim’s son. Ojile says that during the assault, the boy grabbed his grandmother’s phone and ran away. The boy wasn’t harmed.

Responding officers called for backup after finding the victim’s body in the garage. Police say the suspect was found hiding in the home.

Police plan to present the case to prosecutors Tuesday or Wednesday.