Ashton Spears is mourning the loss of his mother, who was found stabbed to death just days after Arlington police gave her estranged husband — and Ashton's father — a ride to the home he was legally barred from.

The 19-year-old wants people to remember 53-year-old Mary Spears not for how she died, but for how she lived — as a kind, loving mother and a great person.

As the family grieves, Arlington police are now investigating whether department policies played a role in the tragedy.

Ring video shows earlier threat

Ashton Spears shared Ring camera footage with CBS News Texas showing the Wednesday, Sept. 17, incident that police say led to his father, Frederick Spears, initially being charged with aggravated assault-family violence.

The video shows Frederick Spears holding a knife

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