California authorities have identified the last unknown victim of serial killer Keith Hunter Jesperson, infamously known as the "Happy Face Killer." The woman, discovered along a California highway in 1992, has been identified as Lydia Jane Wade McWhorter of Texas, according to the Riverside County District Attorney's Office.
McWhorter's body was found on August 30, 1992, approximately seven miles north of Blythe, California, along Highway 95. At the time, investigators knew her only as "Claudia," a name Jesperson provided. He later confessed to her murder, along with those of at least seven other women across multiple states.
Unraveling a Cold Case
The identification process involved genetic genealogy. While initial DNA testing in 2024 connected the victim to relatives on her father's side, it did not provide the crucial maternal link needed for positive identification. Investigators from the Riverside County Cold Case Unit pursued leads that eventually led them to a direct maternal relative. A subsequent DNA sample confirmed the connection earlier this week, nearly 34 years after McWhorter's body was discovered.
Jesperson, a long-haul truck driver, confessed to killing eight women between 1990 and 1995. He gained notoriety for signing letters to the media about his crimes with a smiley face. He was arrested in 1995 and pleaded guilty to McWhorter's murder in Riverside County in 2010, receiving a sentence of 25 years to life. He is currently serving multiple life sentences in Oregon.
With McWhorter's identification, the Riverside County cold case team has closed the final unidentified victim case associated with Jesperson's convictions. The District Attorney's Division of Victim Services is working with McWhorter's family to arrange for her final resting place and to honor her memory. Investigators expressed hope that this resolution will bring closure to McWhorter's family, who had been without knowledge of her fate since her disappearance from Texas in the 1990s.