Irene Carlson, a 77-year-old widow who ran the Blueberry Antique Shop near Maple in Douglas County, Wisconsin, was found shot in the back of the head inside her business on August 6, 1976. She had planned to go shopping with a friend that day but never arrived; a neighbor later recalled hearing what sounded like a gunshot and the friend and neighbor discovered Carlson near the doorway.

Investigators later linked the killing to Allen Leroy Anderson, a career criminal whose 1976 travels were tied to a series of robberies, stolen vehicles, credit-card fraud and multiple killings. Anderson was arrested in Los Angeles on October 28, 1976, and police recovered a .22-caliber revolver; historical accounts note a pattern of victims shot in the back of the head with a .22-caliber firearm.

Does anyone have memories of the Blueberry community in 1976 or information about Carlson’s antique shop that could add detail to this case?