A teenage girl found in a shallow grave beneath a California vineyard nearly half a century ago has been identified. This revelation reopens a 48-year-old murder mystery. Michelle Louise Collier was 15 years old when she vanished from Fresno in February 1978.
In June 1978, a tractor operator came across her skeletal remains buried near Arvin. At the time, authorities could not identify her, leaving her known as “Arvin Jane Doe” for decades. Her sister, Cynthia Dunbar, spoke during a news conference, expressing that the family finally feels some closure.
“She disappeared 48 years ago, and it was only recently that we knew where she was,” Dunbar said. “At least with this information, my family has some closure.”
Michelle’s family addressed the person responsible, with Dunbar delivering a stern message about the impact of the crime and expressing hope for justice.
The Kern County Sheriff’s Office announced the identification at a press conference. Michelle’s remains were originally found on June 21, 1978. Though the autopsy confirmed homicide as the cause, the exact circumstances remained unknown.
Kern County homicide Detective Ashley Thompson highlighted the difficulties faced without knowing the victim’s identity. The case became a priority again as forensic technology advanced. Investigators revisited the case multiple times, trying various forensic methods and partnering with organizations to generate leads.
In 2007, her remains were exhumed for DNA sampling. This attempt, though still unsuccessful without matching DNA from relatives, set the stage for future breakthroughs. A forensic anthropologist’s examination in 2008 suggested the victim was likely between 15 and 24 years old.
In 2025, investigators turned to forensic investigative genetic genealogy, collaborating with Othram, a Texas-based forensic lab, to develop a DNA profile. This technology revealed potential relatives, ultimately confirming Michelle’s identity in October 2025 through a comparison with her mother’s DNA.
Dunbar mentioned that existing DNA in a genealogy database submitted by Collier’s half-brother played a crucial role. This success marks the 86th instance where Othram’s technology solved a previously unidentified case in California.
After confirming her identity, Collier’s remains were retrieved from Arvin Cemetery in April 2026 for a proper burial. Dunbar expressed a heartfelt message to Michelle, using the family’s nickname for her.
“You didn’t deserve to die this way, Shelley. Barely 15, still a child, with your whole life ahead of you,” Dunbar said. “We love you, Shelley.”
Despite this major step, investigators emphasize that the homicide investigation is still ongoing. Detective Thompson noted that knowing the victim’s identity will now fundamentally change their approach.
The Kern County Sheriff’s Office encourages anyone with information about Michelle’s life, disappearance, or death to reach out. Detective Thompson can be contacted at 661-861-3110, and the Secret Witness line is 661-322-4040.