California Authorities Identify Final Unknown Victim of Serial Killer Keith Jesperson After 34 Years

Riverside County District Attorney’s Office announced Thursday that investigators have successfully identified Lydia Jane Wade McWhorter as the last unidentified victim of serial killer Keith Hunter Jesperson, concluding a mystery that began when her body was discovered along a California roadway in 1992. The identification came through DNA testing that confirmed a maternal family connection, marking a major breakthrough in the decades-old cold case.

McWhorter’s remains were found August 30, 1992, on Highway 95 approximately seven miles north of Blythe, California. Jesperson, a long-haul truck driver who operated across multiple states, subsequently confessed to her murder and had only identified her to investigators by the name “Claudia,” leaving authorities unable to verify whether that was her actual identity.

The resolution followed renewed investigative efforts in 2024, when genetic genealogy linked the unknown victim to paternal relatives, including Summer Gonzales who was identified as her half-sister. An additional investigative lead then connected authorities to a direct maternal relative, and DNA confirmation came earlier this week, authorities said.

Jesperson was apprehended in 1995 and admitted to eight homicides committed between 1990 and 1995 across California, Washington, Oregon, Florida, Nebraska, and Wyoming. He pleaded guilty to McWhorter’s murder in January 2010 and received a 25-year-to-life sentence; he currently serves multiple life sentences in Oregon and became known as the “Happy Face Killer” after sending media letters signed with a smiley face.

McWhorter’s sisters, who had been searching for answers since her disappearance from Texas in the 1990s, can now lay her to rest with family. The Riverside County District Attorney’s Division of Victim Services is assisting the family in planning a proper burial and honoring her memory.