Michael Butterfield, author of "The Zodiac Killer: The Story of America's Most Elusive Murderer," joins "Mind Over Murder" cohosts Bill Thomas and Kristin Dilley to discuss his new book, his longtime research into the still unsolved Zodiac case, and his website, ZodiacKillerFacts.com. Will Zodiac ever be identified? Will the remaining Zodiac ciphers be solved? Are there really similarities between the Zodiac case and the Colonial Parkway Murders? This bonus episode is is Part 1 of 2 parts on the Zodiac with Michael Butterfield, and originally ran on May 12, 2025.

CrimeCon: We’re going to CrimeCon again, folks! Join us in Denver for new merch, some MOM listener hangouts, and a lot of fun! Use the code MINDOVERMURDER to get 10% off your tickets between now and September! See you there!

Amazon: The Zodiac Killer: The Story of America's Most Elusive Murderer

https://www.amazon.com/Zodiac-Killer-Americas-Elusive-Murderer/dp/1398851779?author-follow=B0F4RS214F

ZodiacKillerFacts.com website:

https://zodiackillerfacts.com/about/

Washingtonian: A Murder on the Rappahannock River:

https://www.washingtonian.com/2019/06/27/murder-on-the-rappahannock-river-emerson-stevens-mary-harding-innocence-project/

WTKR News 3: One year after development in Colonial Parkway Murders, where do things stand?

https://www.wtkr.com/news/in-the-community/historic-triangle/one-year-after-development-in-colonial-parkway-murders-where-do-things-stand

Won't you help the Mind Over Murder podcast increase our visibility and shine the spotlight on the "Colonial Parkway Murders" and other unsolved cases? Contribute any amount you can here:

https://www.gofundme.com/f/mind-over-murder-podcast-expenses?utm_campaign=p_lico+share-sheet&utm_medium=copy_link&utm_source=customer

WTVR CBS News: Colonial Parkway murders victims' families keep hope cases will be solved:

https://www.wtvr.com/news/local-news/colonial-parkway-murders-update-april-19-2024

WAVY TV 10 News: New questions raised in Colonial Parkway murders:

https://www.wavy.com/news/local-news/new-questions-raised-in-colonial-parkway-murders/

Alan Wade Wilmer, Sr. has been named as the killer of Robin Edwards and David Knobling in the Colonial Parkway Murders in September 1987, as well as the murderer of Teresa Howell in June 1989. He has also been linked to the April 1988 disappearance and likely murder of Keith Call and Cassandra Hailey, another pair in the Colonial Parkway Murders.

13News Now investigates: A serial killer's DNA will not be entered into CODIS database:

https://www.13newsnow.com/video/news/local/13news-now-investigates/291-e82a9e0b-38e3-4f95-982a-40e960a71e49

WAVY TV 10 on the Colonial Parkway Murders Announcement with photos:

https://www.wavy.com/news/crime/deceased-man-identified-as-suspect-in-decades-old-homicides/

WTKR News 3

https://www.wtkr.com/news/is-man-linked-to-one-of-the-colonial-parkway-murders-connected-to-the-other-cases

Virginian Pilot: Who was Alan Wade Wilmer Sr.? Man suspected in two ‘Colonial Parkway’ murders died alone in 2017

https://www.pilotonline.com/2024/01/14/who-was-alan-wade-wilmer-sr-man-suspected-in-colonial-parkway-murders-died-alone-in-2017/

Colonial Parkway Murders Facebook page with more than 18,000 followers: https://www.facebook.com/ColonialParkwayCase

You can also participate in an in-depth discussion of the Colonial Parkway Murders here:
https://earonsgsk.proboards.com/board/50/colonial-parkway-murders

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Colonial Parkway Murders website: https://colonialparkwaymurders.com

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BONUS: The Zodiac Killer with Michael Butterfield (Part 1)