A kidnapping of a journalist, Ella Pierce, by parties unknown - and the only clue left at the scene is a suspicious earthy material later identified as a combination of human blood and sandstone.
The discovery of a still-unidentified corpse in the long-term parking lot of O'Hare International Airport, with signs of dehydration, malnutrition and extended medical care. Additionally, a small amount of the same sandstone-and-blood mixture was found in the vehicle.