Listen to this story:
A husband and wife, lying in their bedroom, their baby in her crib in the adjacent nursery. A typical family on a typical morning, minus the red bloodstains on the beige bedroom carpet and the pink and white striped wallpaper behind the crib. All three family members, mother, father and baby, have been shot to death.
While the scene may sound like something straight out of a true-crime show, it is a diorama called “Three-Room Dwelling” that was built in about…