St. George Police believe the shooting deaths of an elderly brother and sister was the result of a murder-suicide. 

Officers found 67-year-old Shandra Brownstein and 68-year-old Stanley McCausland dead inside their apartment on May 9th, but think the siblings had been dead for a week.

Investigators believe the brother shot his sister in her bed before turning the gun on himself. 

No motive for the incident has been released.

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