A chilling discovery in Robertson County, Tennessee, has revived a nearly 20-year-old cold case. DNA testing has identified a human leg found in Sulphur Fork Creek, Springfield, on July 4, 2025, as belonging to 68-year-old Joseph Frank Benton, Sr.
For private investigator Buddy Mitchell, who has spent 15 years pursuing this case, the finding has brought new urgency to the search for Jennifer Wix and her 2-year-old daughter, Adrianna, who disappeared on March 25, 2004.
What Happened
Authorities confirmed that a leg discovered in Sulphur Fork Creek over the summer belonged to Joseph Frank Benton, Sr. The Benton family’s property is central to the disappearance of Jennifer and Adrianna Wix, who were last seen in 2004. Private investigator Buddy Mitchell believes critical evidence could still be hidden there, particularly near a log house built shortly after the mother and daughter went missing.
Who Are Jennifer and Adrianna Wix?
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Jennifer Wix, a young mother, vanished on March 25, 2004, along with her 2-year-old daughter, Adrianna.
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Their disappearance remains one of Tennessee’s most haunting cold cases, with family and investigators working tirelessly for answers.
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Mitchell emphasizes: “My priority is to find that precious baby and her mom. We will never give up.”
Background and Timeline
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March 25, 2004: Jennifer and Adrianna were last seen at the Benton family property in Robertson County.
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Following years: Searches were conducted, but investigators were restricted from fully examining all areas of the property.
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Over the years: Mitchell conducted more than 75 interviews, collected evidence, and traveled as far as Florida to pursue leads.
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July 4, 2025: A human leg was discovered in Sulphur Fork Creek, later identified as belonging to Joseph Frank Benton, Sr.
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Now: Mitchell is pressing for renewed searches, convinced untouched areas still hold answers.
Public and Social Media Reaction
The discovery has sparked renewed interest across Tennessee and beyond. Advocates, community members, and families of missing persons have shared the story widely with calls for a thorough re-investigation. Many are urging authorities not to let this opportunity pass without a deeper search.
Official Statements and What Happens Next
Mitchell says he has turned over a transcript of an interview with Benton’s son, “Joey,” to the District Attorney, the Tennessee Bureau of Investigation (TBI), and the Robertson County Sheriff’s Office.
In that interview, Joey allegedly claimed that when he arrived home, “the girls were deceased, had been shot.” Mitchell believes this evidence is vital and has called for renewed excavation and full searches of the Benton property.
Authorities, including the TBI and Robertson County Sheriff’s Office, continue to investigate. Mitchell remains steadfast:
“Find the girls, and bring them home, so the family can have some kind of closure.”
Anyone with information is urged to contact the TBI, the Robertson County Sheriff’s Office, or Mitchell directly at 615-562-0810.
This story may be updated with more information as it becomes available.
