A Mississippi veterinarian shot and killed two Bay St. Louis police officers before she was killed by a gunshot wound to the chest early Wednesday morning in a Motel 6 parking lot.

Police said they believe Amy Brogdon Anderson, 43, shot herself, but the Mississippi Department of Public Safety Commissioner said that one of the officers discharged his service weapon, and an autopsy will confirm how she died, according to the Biloxi Sun-Herald.

Bay St. Louis Police Sgt. Steven Robin, 34, and Officer Branden Estorffe, 23, were sent to conduct a welfare check at about 4:30 a.m. after Amy Brogdon Anderson, 43, backed into a parking space with a 10-year-old girl in her vehicle.

Robin and Estorffe spoke with Anderson for about 30 minutes, the Sun-Herald reported. During their talk, one of the officers called child protective services. Shortly afterward, Anderson shot the two officers.

Responding officers found Robin dead in the parking lot and Estorffe badly wounded. He was rushed to a hospital but died from his wounds. They also found Anderson, still in her vehicle, dead from a gunshot wound to the chest.

Initially, investigators believed that Anderson shot herself but have since learned that police fired a shot at her during the incident. An autopsy will determine whether her death was a suicide or not, ABC 11 reports.

“The most selfless person I know. I don’t want this life without you… love you forever Branden Estorffe,” Estorffe’s wife wrote on social media following his death.

It wasn’t clear what happened to the girl in Anderson’s vehicle or who she was. Check back for updates.

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[Featured image: Steven Robin, left, and Branden Estorffe/Bay St. Louis Police Department]