Blood is Thicker: The Hargan Family Killings

Millionaire businesswoman Pamela Hargan and her youngest daughter Helen are found dead in their family home in McLean, Virginia. The strange and haunting crime scene puzzled investigators – was it a murder-suicide or was it staged to look like one? There was conflicting evidence all around. 48 Hours correspondent Peter Van Sant examines the suspenseful case in this 6-episode series, "Blood is Thicker: The Hargan Family Killings". Detectives try to untangle mixed motives from mother-daughter discord, to sibling rivalry, jealousy and a family fortune. Find out if blood is really thicker when it comes to the Hargan family.