Bill Thomas and I conclude our conversation on the latest developments in the Colonial Parkways Murders. Bill walks us through the patterns, dead ends and new leads.

Listen to part 1 of this series here.

Listen to part 2 of this series here.

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In this episode, Bill Thomas, the brother of Colonial Parkway murder victim Cathy Thomas, and I continue our discussion on the cases. We revisit how Alan Wade Wilmer Sr. became a major but mishandled suspect after the 1988 disappearance of Keith Call and Cassandra Hailey, whose abandoned car coincided with reports of a man in a distinctive, waterman‑rigged pickup confronting couples while posing as law enforcement. His work on the water gave him plausible access to remote roads, docks, and peninsulas without attracting attention.

Bill walks through the FBI’s early search of Wilmer Sr.’s home and truck—where agents found weapons and restraints—yet he was released after polygraphs. Only years after his death in 2017 did manual DNA comparisons revive the case, ultimately linking him to multiple murders, including Cathy and Becky Dowski.

We also introduce Liberty Security, a small local company with repeated proximity to several victims and their families, and its owner, Ron Little— one reason Wilmer Sr.’s identification does not close the cases. The episode reframes the pattern of violence as a broader set of “Peninsula Murders,” shaped by waterways, jurisdictional seams, and Wilmer Sr.’s ability to move fluidly between them.

Contact me at silverliningshandbookpod@gmail.com

Check out the Silver Linings Handbook website at:

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Check out our Patreon to support the show at:

https://www.patreon.com/thesilverliningshandbook

Join our Facebook Group at:

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Visit the Silver Linings Handbook store to support the podcast at:

https://www.bonfire.com/store/the-silver-linings-handbook-podcast-store

Visit The True Crime Times Substack at:

https://truecrimemessenger.substack.com

The Silver Linings Handbook podcast is a part of the ART19 network. ART19 is a subsidiary of Wondery and Amazon Music.

See the Privacy Policy at https://art19.com/privacy and the California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

In this episode, Bill Thomas, the brother of Colonial Parkways murder victim Cathy Thomas, and I examine the series of homicides that occurred in Virginia between 1986 and 1989. The case began in 1986, when Bill’s sister, Cathy, and her girlfriend were found dead in Cathy’s Honda Civic just off the Colonial Parkway. For more than three decades, the murders remained unsolved.

That shifted in 2024, when a Northern Neck waterman, Alan Wade Wilmer Sr., was linked to two of the Colonial Parkway cases—and to several additional homicides across Virginia’s three peninsulas, including some not previously connected to the series. Then, in January, more than 39 years after Cathy’s death, Bill learned that her killing had been formally tied to Wilmer Sr.

Even with this development, Bill’s search for answers continues—particularly how Wilmer Sr., once on the FBI’s radar and ruled out early on, was able to continue killing. His investigation now reaches beyond the crimes themselves to the failures that allowed them to continue.

Contact me at silverliningshandbookpod@gmail.com

Check out the Silver Linings Handbook website at:

https://silverliningshandbook.com/

Check out our Patreon to support the show at:

https://www.patreon.com/thesilverliningshandbook

Join our Facebook Group at:

https://www.facebook.com/groups/1361159947820623

Visit the Silver Linings Handbook store to support the podcast at:

https://www.bonfire.com/store/the-silver-linings-handbook-podcast-store

Visit The True Crime Times Substack at:

https://truecrimemessenger.substack.com

The Silver Linings Handbook podcast is a part of the ART19 network. ART19 is a subsidiary of Wondery and Amazon Music.

See the Privacy Policy at https://art19.com/privacy and the California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.