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[The Colonial Parkway Murders: Unmasking a Serial Predator After Four Decades]-[Ep. 99 | The Colonial Parkway Serial Killer]

Crime, Conspiracy, Cults and Murder · B2 · 2026-03-04

True crime
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📋 Summary

The Dark Shadow of the Colonial Parkway

For nearly 40 years, the "Colonial Parkway murders" remained one of the most haunting mysteries in American true crime. The Colonial Parkway, a 23-mile scenic route connecting Jamestown, Williamsburg, and Yorktown, Virginia, was designed for historical reflection. However, by the 1980s, its lack of street lighting, dense forest coverage, and secluded pull-offs turned it into what former homicide detective Steve Spingola described as a "Gay Lovers Lane," a place that, according to author Blaine Pardo, "lost its romance" and became a "creepy place to go to at night." The area’s unique jurisdictional overlap between the National Park Service, state police, and local law enforcement created significant "gaps in coverage," effectively turning the parkway into a hunting ground for an unidentified serial killer.

A Pattern of Targeted Violence

The violence began in October 1986 with the disappearance of 17-year-old Kathy Thomas and 21-year-old Becky Dowski. Their bodies were found in Kathy’s Honda Civic, left at the Cheatham Annex Overlook. The scene was chilling: both women had been strangled and their throats cut, yet there was no evidence of sexual assault or robbery. Investigators were puzzled by the "methodical" nature of the crime—the driver’s seat had been adjusted for a taller person, and the killer had attempted to douse the interior with diesel fuel. This pattern of terror continued with the 1987 murders of David Nobling and Robin Edwards, and the 1988 disappearance of Keith Call and Cassandra Haley, whose vehicle was found with their belongings deliberately arranged, suggesting a killer who enjoyed control and psychological torment.

The "Waterman" Suspect and the Polygraph Failure

In 1988, the FBI identified a primary suspect: a local waterman who harvested oysters and clams. He lived in a trailer, drove a blue 1966 Dodge pickup with "EM Raw" vanity plates, and possessed an intimate knowledge of the region's waterways. Witnesses reported him acting as a "peeping Tom" who aggressively approached parked couples. Despite finding items like handcuffs and a gun during a search, and the suspect admitting to being near the crime scene, he was released after passing a polygraph test. FBI Special Agent Irvin Wells later expressed his fury, stating, "I know this guy did it," but the Bureau deferred to the polygraph examiner, allowing the killer to walk free for another 29 years.

Justice Through Modern Forensics

It was not until the suspect, Alan Wade Wilmer Sr., died of natural causes in 2017 that the case finally began to unravel. During a routine post-mortem, a DNA sample was collected. In 2023, utilizing the "Virginia Sexual Assault Kit Initiative," forensic scientists confirmed that Wilmer’s DNA matched evidence from the crime scenes. The revelation was devastating: Wilmer had been the FBI’s top suspect since 1988, but a single polygraph test had derailed the investigation. Subsequent investigations linked Wilmer to the murders of Teresa Lynn Howell and Lori Ann Powell, victims previously unconnected to the Parkway case, confirming he was a prolific serial predator.

A Legacy of Legal Limbo

While the DNA evidence provided some closure for the families, the case remains mired in frustration. Because Wilmer died without a criminal conviction, his DNA cannot be entered into CODIS (Combined DNA Index System), preventing law enforcement from automatically linking him to other unsolved cold cases. Victims like Keith Call and Cassandra Haley remain officially classified as "endangered missing persons," and families are now lobbying for legislative reform to allow the inclusion of deceased serial killers into national databases. As Bill Thomas, brother of victim Kathy Thomas, poignantly noted, the system seems to prioritize the "civil rights of a dead serial killer over the rights of my family." While the circle has closed on Wilmer’s identity, the search for potential accomplices and the full scope of his crimes continues, leaving a lingering, bitter sense of what "justice" truly means when the perpetrator escapes a courtroom forever.

🎯Key Sentences

1
That's not a coincidence, and that's really freaky.
2
It's a serious extra layer of protection.
3
And she was just a natural leader.
4
It was a very relaxed, fun evening with nothing unusual.
5
But unfortunately, an extensive search of the river turned up no sign of them.
Expand All

📝Key Phrases

1
blow the case wide open
2
without further ado
3
slam on the brakes
4
on your behalf
5
stretch their legs
Expand All

📖 Transcript

Eight victims in three years, all taken from the same darkened road.
And for 40 years these murders were a total mystery, until one piece of evidence blew the case wide open.
These are the Colonial Parkway murders.
Crime, conspiracy, cults, serial killers, and murder.
All things that I love to consume, and I know you do too, you sick twisted beautiful, intellectually-minded freak.
Today we're getting into an extremely interesting case that I knew nothing about a week ago, and now I'm about to educate you on it.

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