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Woman arrested in murder of her sister and mother in their McLean home

WUSA-TV Washington, D.C. logo WUSA-TV Washington, D.C. 11/9/2018 Peggy Fox
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MCLEAN, Va. -- A woman has been arrested in the deaths of her sister and mother, Fairfax County Police tell WUSA9's Peggy Fox.

Helen Hargan and her mother Pamela Hargan were shot to death in their McLean home in July of 2017.

Megan was arrested Friday morning in West Virginia where she lives, according to Fairfax County Police.

RELATED: Shooting deaths of McLean mother, daughter still unresolved a year later

She and her 6-year-old daughter had lived in the home with her mother and sister at the time of the murder.

Fairfax County Police will have a news conference Friday afternoon discussing the case and the arrest.

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