Just Killing Time

In a Washington suburb a young boy discovers the skeletal remains of a teenaged girl, apparently dating back to the Civil War. At the same time, Diana Clayton and her two daughters are slaughtered in their home by a lone intruder. Across the years a series of strange clues link the killings.
 
In a Washington suburb a young boy discovers the skeletal remains of a teenaged girl, apparently dating back to the Civil War. At the same time, Diana Clayton and her two daughters are slaughtered in their home by a lone intruder. Across the years a series of strange clues link the killings.