The childhood friends who turned a rural California community into a hunting ground for human prey have left a legacy of horror that continues to unfold nearly three decades after their killing spree began. Wesley Shermantine and Lauren Herzog, dubbed the “speed freak killers,” embarked on a 𝒹𝓇𝓊𝑔-fueled rampage in 1984 that would span 15 years, claiming victims with a brutality that stunned even seasoned detectives.
Their predatory crimes struck fear into the hearts of Calaveras County residents as the duo targeted strangers, prostitutes, and even acquaintances. Investigators now believe the body count may be among the highest in U. S.
serial killer history, with Shermantine himself boasting of up to 125 victims.
The case took a dark turn in 1985 when 16-year-old Chevel Wheeler vanished after skipping school in Stockton. Her disappearance became the first crack in a mystery that would take decades to unravel. Shermantine, then 19, quickly became a prime suspect but was released for lack of evidence.
Thirteen years later, in 1998, a second young woman disappeared. Cindy Vanderheiden, a 25-year-old waitress, was last seen leaving a bar with Herzog. Her car was found abandoned near a cemetery, but no trace of her remained.
DNA evidence later linked Shermantine to both missing women, leading to their arrests.
Herzog broke under questioning, confessing to a series of murders that included the savage double shooting of two men in 1985. He described how Shermantine raped and killed Vanderheiden, slitting her throat and telling her “let it come naturally” as she died. The confession also revealed the senseless murder of a pregnant prostitute whose fetus was cut from her womb.
The pair’s criminal partnership was forged in childhood, with Shermantine as the dominant, abusive figure and Herzog the willing follower. Both came from troubled homes, but experts say the true catalyst was methamphetamine, which fueled their grandiosity and disinhibition.
In 1999, Shermantine received a death sentence while Herzog was sentenced to 78 years in prison. But a controversial appeals ruling freed Herzog on parole in 2010, sparking outrage. Within months, Shermantine began taunting authorities from death row, offering to reveal burial sites if paid.
Bounty hunters and investigators excavated the so-called “Boneyard” in Calaveras County, recovering the remains of Chevel Wheeler and Cindy Vanderheiden in 2011. The discoveries brought closure to families but raised urgent new questions about the true scope of the killings.
Herzog, terrified of returning to prison, hanged himself shortly after learning Shermantine had started cooperating. The suicide highlighted Shermantine’s continued psychological hold over his former accomplice.
The FBI has since begun excavating old wells in the region, where dozens more victims may lie buried. Shermantine has claimed the actual death toll could exceed 20. The investigation continues as authorities sift through decades of missing persons cases.
For the families, the pain endures. Paula Wheeler, Chevel’s mother, said she planned to scold her daughter for cutting school that day and then love her forever. Cindy Vanderheiden’s father still leaves the porch light on, hoping somehow she might come home.
The question of what turned two small-town boys into killers remains unanswered. Was it 𝓪𝓫𝓾𝓼𝓮, addiction, or something born within them? Shermantine’s pending execution offers no solace to those left behind.
The scars of their rampage run deep, and the full tally of their victims may never be known.


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