APD says officers responded to a call around 12:19 p.m. on June 20 regarding shots fired at a home in the 8700 block of Bluegrass Drive.
When officers arrived, they found 57-year-old Ashley Harris and 62-year-old Jacob Barlow with trauma to their bodies. Both were pronounced dead within minutes of each other just before 1 p.m.
APD says that homicide detectives are investigating this incident as a murder-suicide and that it appears to have been isolated between siblings.
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Autopsy results determined the manner of death for both Harris and Barlow as gunshot wounds. Harris's cause of death was ruled a homicide and Barlow's was ruled a suicide by the Travis County Medical Examiner's Office.
Detectives are asking anyone with information or video of the incident to call APD Homicide at 512-974-TIPS; the Crime Stoppers anonymous tip line at 512-472-8477 (TIPS), use the new Crime Stoppers App, or email APD Homicide at email@example.com. You may remain anonymous. You can also submit tips by downloading APD's mobile app, Austin PD, free on iPhone and Android.