The death of 84-year-old Carmen Abbott was formally ruled a homicide Wednesday morning by the Ada County Coroner’s Office .
Abbott’s body was one of two recovered from a southwest Ada County house last week, following an armed home invasion and fast-moving fire.
Abbott died Sept. 28 in the fire at Amity and Linder roads, the coroner said. Her death was caused by carbon monoxide poisoning.
The coroner has not yet released the identity of the other body, a man Ada County sheriff’s investigators believe threatened the residents with a gun.
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Abbott had been staying with her son, 55-year-old Scott McAlister. He also died as a result of the home invasion and fire, hours after he was transported to the University of Utah Burn Center, their family told the Statesman Saturday. His wife, Lily, was the sole survivor.
Relatives described Abbott as “a strong woman who would do anything for her family.”
Sheriff Stephen Barlett said deputies who responded to a report of a prowler at the house fired at the armed man, who was banging on the front door of the house before gaining entry.
Within about 15 minutes, the house was on fire. Deputies helped Lily and Scott McAlister escape through a window.