Prince William police: “On June 24, 1978, Deborah Frank, Sharon Lake & Karen Scarbrough were found dead in a Ryland Homes sales trailer in [Dale City]. Sharon was helping Deborah find a home. This was Karen’s first job upon graduating from high school. All 3 died from a gunshot wound.”
Washington Post: “The three women were each shot once in the back of the head and found lying side by side in a trailer used as a housing development office. Police yesterday called the shootings the worst crime in the history of the county.”