Colonial Parkway Murders Suspect Identified

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SUMMARY

The FBI identified Alan Wade Wilmer Sr., who died in 2017, as the suspect in the 1986 murders of Cathleen Thomas and Rebecca Dowski on January 20, 2026, resolving a decades-long cold case in Virginia. As of July 16, 2026, the FBI has linked Wilmer Sr. to a total of seven victims in the Colonial Parkway murders investigation, including David Knobling, Robin Edwards, Laurie Ann Powell, Annamaria Phelps, Daniel Lauer, and Teresa Lynn Spaw Howell, stating that evidence would have supported federal prosecution if he were alive. Advances in forensic science and DNA analysis were crucial in making these connections. Victims' advocates are calling for legislative changes to allow the DNA of convicted serial killers, such as Wilmer Sr., to be entered into the Combined DNA Index System (CODIS).

Timeline

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July 2026 — 1 developments

  1. FBI Links Colonial Parkway Murders Suspect Wilmer Sr. to Additional Victims

    The FBI has linked Alan Wade Wilmer Sr. to the 1987 murders of David Knobling and Robin Edwards, and confirmed his responsibility for the 1988 death of Laurie Ann Powell. Authorities stated that if Wilmer Sr. were alive, evidence would have supported federal prosecution for these crimes.

May 2026 — 1 developments

  1. Victims' Advocates Seek CODIS DNA Entry for Convicted Serial Killers Post-Wilmer Identification

    Victims' advocates are calling for legislative changes to allow the DNA of convicted serial killers, such as Alan Wade Wilmer Sr., to be entered into the Combined DNA Index System (CODIS). Wilmer Sr. was identified as the suspect in the 1986 Colonial Parkway murders but died before conviction, preventing his DNA from being entered into the system.

January 2026 — 2 developments

  1. FBI links deceased Alan Wade Wilmer Sr. to two more Colonial Parkway murders

    The FBI has linked Alan Wade Wilmer Sr. to two additional victims in the Colonial Parkway murders investigation, bringing the total to four. Wilmer Sr., who died in 2017, is now connected to the deaths of Annamaria Phelps and Daniel Lauer, and Teresa Lynn Spaw Howell, in addition to Cathleen Thomas and Rebecca Dowski. Advances in forensic science and DNA analysis were crucial in making these connections.

  2. FBI Identifies Alan Wade Wilmer Sr. as Suspect in 1986 Thomas and Dowski Murders

    The FBI has identified Alan Wade Wilmer Sr. as the suspect in the 1986 murders of Cathleen Thomas and Rebecca Dowski, bringing a resolution to the decades-long cold case. Wilmer, who died in 2017, is also linked to at least six other murders and disappearances in Virginia between 1986 and 1989. Advances in forensic science and DNA analysis were crucial in identifying Wilmer.

October 1989 — 1 developments

  1. Bodies of Annamaria Phelps and Daniel Lauer found at hunt club property

    The bodies of Annamaria Phelps and Daniel Lauer, who went missing in September 1989, were found at a hunt club property near a rest stop where their car was recovered. Phelps showed evidence of stabbing.

July 1989 — 1 developments

April 1988 — 2 developments

  1. Cassandra Hailey and Keith Call reported missing after university party; car found on Colonial Parkway

    Cassandra Hailey and Keith Call were reported missing after a university party. Their car was recovered on the Colonial Parkway, but their bodies have never been found.

  2. Body of Laurie Ann Powell, missing since 1988, found in James River with stab wounds

    The body of Laurie Ann Powell, 18, who was last seen in March 1988, was recovered from the James River near Ragged Island with multiple stab wounds.

February 1988 — 1 developments

  1. Body of Brian Pettinger, missing since 1987, found in James River marsh

    The body of Brian Pettinger, who went missing in December 1987, was recovered from the James River marsh in Suffolk. He had blunt force trauma to the back of his head and drowned. His wrists and ankles were tied, and a rope was around his neck.

September 1987 — 1 developments

  1. Bodies of David Knobling, Robin Edwards found shot to death on Ragged Island shoreline

    The bodies of David Knobling, 20, and Robin Edwards, 14, were found shot to death on the shoreline of Ragged Island. Edwards had been sexually assaulted.

October 1986 — 1 developments

  1. Killer Strangles, Stabs, and Attempts to Torch Victims in Colonial Parkway Murders

    The bodies of Rebecca Dowski, 21, and Cathleen Thomas, 27, were discovered in Thomas's car along the Colonial Parkway. They had been strangled and stabbed, and their throats were cut. Their purses were in the car, which the killer had unsuccessfully tried to torch.