Arin M. Fox, 39, of Algonquin.

Authorities say that a woman stabbed an elderly couple to death inside an Algonquin home and then fled to Colorado where she was arrested on Sunday.

The Algonquin Police Department responded around 6:40 p.m. Sunday to the 600 block of Red Coach Lane in Algonquin for a well-being check.

Officers made entry to the residence and found a male and female deceased inside the home.

The Algonquin Police Department Investigations Division and the McHenry County Major Investigation Assistance Team (MIAT) responded to the scene.

The McHenry County Coroner’s Office has identified the victims as Leonard J. Gilard, Jr, a 73-year-old resident of Algonquin, and Noreen S. Gilard, a 69-year-old resident of Algonquin.

Algonquin Deputy Police Chief Ryan Markham said the victims’ wounds are consistent with that of a stabbing but an autopsy will confirm those details. No firearm was used in the crime.

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Markham added that the incident is believed to be domestic violence-related and is being thoroughly investigated. There is not believed to be any threat to the community.

Police identified the suspect as Arin M. Fox, 39, of Algonquin. Her relationship to the victims was not released.

She has been charged with four counts of first-degree murder, two counts of possession of a stolen motor vehicle, one of aggravated battery and one count of domestic battery.

Fox fled to Colorado after the murders occurred and she has since been detained in the Douglas County, Colorado Detention Center awaiting extradition, Markham said.