Yvonne and Emily Selke from Nokesville were among the 150 people who perished on Tuesday.
The case is one of a growing number sparked by Web sites that allow customers to rate businesses.
The teen is facing multiple counts for the incident in Falls Church on Sunday.
Two students originally from Mongolia said they were invited to the house under the pretense of a job.
Andrew Miller, of Southeast D.C., was arrested in connection with a stabbing on Thursday.
Adrean Austin lost control of his vehicle on a curve on Brandywine Road Friday evening.
Victim, who suffered trauma to her body, was found inside a home in the 6400 block of Knollbrook Drive.
The incident occurred on Branch Avenue in Hillcrest Heights.
The fire broke out in a home in Springfield.
Closing the D.C. General shelter remains the goal, but it will take additional time, according to officials.