Washington County Coroner Tim Warco says Taniyah Thomas was shot in the head at about 3:50 a.m. Monday at her home about 20 miles southwest of Pittsburgh.
Washington police Det. Daniel Stanek says the girl, her mother, her mother's boyfriend and a baby were asleep when the shots were fired through the apartment door. Taniyah died of a head wound about 30 minutes later at Washington Hospital.
Police say the shooter didn't enter the apartment. Police say it isn't clear whether more than one suspect was involved.
Police haven't said who they believe may have been targeted in the potential home invasion.
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