In the 1980s, the Dardeen family was brutally murdered in the small Illinois town of Ina. Russell, Ruby, Peter, and Casey were all brutally killed in their own home, and the person who did it has never been found. — In the 1980s, the Dardeen family was brutally murdered in the small Illinois town of Ina. Russell, Ruby, Peter, and Casey were brutally murdered in their own residence, and the killer was never apprehended. There have been many theories and suspects proposed, but no conclusive answers have been found. …