William Schmidt; John Griffith; Michael Graham (June 15, 1971). "4 Hunted After Mass Murder of 7". Detroit Free Press. pp. 1A, 2A. Archived from the original on July 24, 2022. Retrieved July 24, 2022 – via Newspapers.com.
William Schmidt; John Griffith; Michael Graham (June 15, 1971). "4 Hunted After Mass Murder of 7". Detroit Free Press. pp. 1A, 2A. Archived from the original on July 24, 2022. Retrieved July 24, 2022 – via Newspapers.com.