Riverside County investigators have finally named the last unidentified victim of serial killer Keith Hunter Jesperson, a Texas woman whose body lay unclaimed beside a California highway for more than three decades.

The Riverside County District Attorney's Office announced Thursday that DNA testing confirmed the woman found along Highway 95 near Blythe, California, in 1992 was Lydia Jane Wade McWhorter of Texas. The identification closes the final open case tied to the murders for which Jesperson, a long-haul truck driver who called himself the "Happy Face Killer", was convicted.

McWhorter's body was discovered on Aug. 30, 1992, roughly seven miles north of Blythe, a small desert city near the Arizona border. For decades, investigators knew her only as "Claudia," the name Jesperson gave them. Her real identity remained a dead end until the county's Cold Case Unit reopened the effort in 2024 using genetic genealogy, a technique that matches DNA profiles against databases of relatives who have voluntarily submitted samples.

Genetic genealogy broke the case wide open in 2024

That renewed push first connected the unknown victim to relatives on her father's side. Through that work, investigators identified Summer Gonzales as McWhorter's paternal half-sister. Gonzales told investigators she wanted to learn her sister's real name and eventually lay her to rest with family.

A separate investigative lead then brought the cold case team to one of McWhorter's direct maternal relatives. Investigators identified a possible genetic connection to another member of the maternal family, and Fox News Digital reported that a DNA sample collected earlier this week confirmed that connection, locking in McWhorter's identity beyond doubt.

The breakthrough mirrors other recent cold cases cracked by DNA evidence, including the arrest of an Arlington real estate agent charged with capital murder in a 2012 case after a similar forensic breakthrough.

McWhorter's sisters, who grew up with her in Texas, had spent decades not knowing what happened after she disappeared in the 1990s. The Riverside County Division of Victim Services is now working with the family as they decide how to honor her and lay her to rest.

Billy Hester, the supervising investigator of the Cold Case Unit, credited the public's role in a news release announcing the identification:

"I want to thank the public for the role you play in our investigations. When people take the time to share information, submit a tip or simply pay attention to what is happening in their community, it can make a real difference. You may not know where a piece of information will lead, but our investigators will follow it. Most importantly, I hope this will finally bring closure to Lydia's family."

Jesperson confessed to eight murders across six states

Jesperson confessed to killing eight women in California, Washington state, Oregon, Florida, Nebraska, and Wyoming between 1990 and 1995. He earned his nickname by sending letters about his crimes to the media, signing each one with a smiley face. He was arrested in 1995.

On Jan. 8, 2010, Jesperson pleaded guilty to McWhorter's murder in Riverside County and received a sentence of 25 years to life. He is currently serving multiple life sentences in an Oregon prison. The New York Post reported that McWhorter's identification closes the final unresolved case connected to Jesperson's confirmed murders.

Cases involving unidentified remains continue to surface across the country. In New York, authorities recently recovered an unidentified man's body from the East River near a busy ferry landing, a reminder that nameless victims still await the kind of answers McWhorter's family just received.

Missing persons cases, too, remain painfully common. A Southern California mother vanished after a summer camp drop-off earlier this year, leaving her family and police searching for answers.

Thirty-four years is too long for a family to wait for a name

McWhorter was someone's daughter, someone's sister. She disappeared from Texas in the 1990s, and for 34 years her family lived without knowing where she was or what had happened to her. Jesperson knew her only as "Claudia." It took genetic genealogy, a tool that did not exist when her body was found, to give her back her name.

The Riverside County cold case team deserves credit for staying on this. Investigators reopened the case, followed the DNA where it led, and brought answers to a family that had waited more than half a lifetime. That kind of dogged, unglamorous work, not federal task forces or press conferences, is what actually delivers justice to victims who have been forgotten.

Violent crime leaves wreckage that outlasts the headlines. Confessions and convictions may close a legal file, but for the families left behind, the case stays open until someone gives them a name and a place to grieve.

Lydia Jane Wade McWhorter finally has both. The system owed her that much, and it took 34 years too long to pay up.