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Marysville deaths ruled homicide, suicide

MARYSVILLE — The Snohomish County Medical Examiner's Office has ruled the two deaths that occurred in a Marysville home on Friday, July 6, were a homicide and a suicide.

The homicide victim, who died of multiple gunshot wounds to the head, was identified as 26-year-old Carrington Michael Costa of Pensacola, Fla.

Costa's grandmother, 70-year-old Shirley Irene Champagne, died from a close-range gunshot wound to the head, that the medical examiner's office has ruled a suicide.

Champagne's husband called 911 at about 8 a.m. on July 6 to report finding the bodies of both his wife and their grandson in the living room of the Champagnes' mobile home in the 5900 block of 64th Street NE.

Costa had moved in with his grandparents in Marysville after pleading guilty on June 26 to assaulting his stepfather in Florida.

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