June 25, 2020
The victim is now known to have been 17-year-old Elizabeth "Lisa" Ann Roberts, Q13 FOX of Seattle reported.
The determination was made nearly 43 years after her death, by the Snohomish County Sheriff's Office Major Crimes Unit, Cold Case Team, and the Snohomish County Medical Examiner's Office.
"The DNA used for the identification was obtained from Lisa's hair using a new scientific technique developed by Dr. Ed Green, a scientist of ancient DNA and paleogenomics," the Snohomish County Sheriff's Office said in statement. "This new technique, previously thought to be impossible, enables DNA-based forensics from rootless hair and other difficult sources."
Authorities said Roberts was born Elizabeth Ann Elder in Hood River, Ore., in 1959 and adopted at age 2. On July 25, 1977, her father reported Roberts as a runaway, and she was murdered 15 days later.
During the murder investigation in 1977, police said Roberts was picked up by David Roth, then 20, who asked her for sex. When she declined, Roth strangled her and shot her seven times in the head, leaving her body unrecognizable. She carried no purse and no driver's license, according to The Everett Herald. Her body was left to decompose in the summer heat for five days before it was found by residents picking blackberries.
A composite sketch was drawn at the time, but no one could identify her. For an unknown reason, Roberts was also no longer listed as missing in the National Crime Information Center, police said. Roth later confessed to the murder and was sentenced to 26 years in prison. He reportedly failed to ask what her name was.
You pick up a stranger, a hitchhiker, she's not going to tell you her name. You're not trying to get personal," Roth told The Daily Herald in 2008 after he was released from prison. "She didn't ask me my name."
Efforts to uncover her identity began again in 2008, with investigators exhuming her remains from a local cemetery. A medical examiner determined she was a teenage girl, which differed from previous assumptions she was 25-35, police said.
Snohomish County Detective Jim Scharf -- who worked on the case for 12 years -- nicknamed her Precious Jane Doe.
"This young girl was precious to me because her moral decision from her proper upbringing cost her, her life," Scharf said. "I knew she had to be precious to her family too, so I had to find them. We needed to give her name back to her and return her remains to her family."
Through genetic genealogy, investigators were also able to build a family tree to identify the biological parent, and they found a biological half-brother to match his DNA with her maternal DNA profile, the department added. Adoption records were then acquired from the Oregon Health Authority.
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