Frances Glessner Lee, heir to the International Harvester fortune, built twenty miniature crime scenes in the 1940s to train homicide detectives. Eighteen of her Nutshell Studies of Unexplained Death are still used by the FBI and Harvard forensic seminars today. The post Frances Glessner Lee, a wealthy heiress in the 1940s, built 20 dollhouse-sized crime scenes with hand-stitched curtains and working light bulbs to train homicide detectives, and 18 of her tiny dioramas are still used in forensic