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The Stacey Castor Antifreeze Murders: How a Mother Tried to Frame Her Daughter

The Antifreeze Lie: How Stacey Castor Tried to Save Herself by Destroying Her Daughter

By RICHIE D. MOWREY for The Sassy Gazette

Content Warning & Editor’s Note

Content Warning: This article discusses domestic homicide, poisoning, attempted murder, and the framing of a child by a parent. It includes references to death, medical trauma, and familial betrayal. Reader discretion is advised.

Editor’s Note: Ashley Wallace was falsely accused of murdering her fathers by her mother, Stacey Castor. That allegation was thoroughly investigated and decisively disproven. Ashley was never a suspect and was identified by prosecutors and the court as a victim of attempted murder and framing. Any reference to those accusations appears only to document their existence and refute them with established facts.

All claims in this article are based on court records, forensic findings, sworn testimony, and appellate rulings. No speculation or unverified theories are presented as fact.

The First Death That Went Unquestioned

In 2000, Michael Wallace died at the age of 38. He had been ill for weeks. His symptoms were vague and easily misread: unsteadiness, fatigue, coughing, swelling. Doctors attributed the death to a heart attack.

No autopsy was performed. Stacey Castor, as next of kin, refused one. At the time, the decision raised little suspicion. Years later, it would be understood as the moment a homicide slipped quietly into the record as natural death.

The Second Death That Didn’t Fit

Five years later, Stacey Castor’s second husband, David Castor, was found dead in bed. A container of antifreeze was nearby. Stacey told police he was depressed. The death was initially ruled a suicide.

Stacey Castor and David Castor. David Castor died in 2005. His death was ruled a homicide, and Stacey Castor was convicted of murder.

Investigators quickly noticed inconsistencies. Fingerprints on the glass did not belong to David. A turkey baster recovered from the trash contained antifreeze residue and David’s DNA. Phone records contradicted Stacey’s account of concern.

The Exhumation That Broke the Case

When Michael Wallace’s body was exhumed in 2007, forensic toxicologists found calcium oxalate crystals embedded in his kidneys. These crystals are a byproduct of ethylene glycol poisoning and do not occur naturally in that concentration.

Seven years after burial, the evidence remained.

Wedding photographs from Stacey Castor’s marriages. Both husbands, Michael Wallace and David Castor, died from ethylene glycol poisoning.

Two husbands. Same poison. Same beneficiary.

The Decision to Sacrifice a Child

With investigators closing in, Stacey Castor made the most chilling choice of the case: she turned on her daughter.

Ashley Wallace was invited to share a drink with her mother. It tasted bad. Stacey encouraged her to keep drinking. Within hours, Ashley was unconscious. She remained comatose for nearly 17 hours before help was called.

Stacey Castor with her daughters. Ashley Wallace later survived an attempted poisoning and testified against her mother at trial.

A typed “suicide note” was placed beside Ashley’s bed, falsely confessing to the murders. It was meant to end the investigation.

It did not.

The Note That Betrayed Its Author

The note misspelled antifreeze as “anti-free,” matching Stacey Castor’s recorded speech pattern. Computer timestamps showed it was written while Ashley was at school. Wiretaps captured typing while Stacey claimed she was not using the computer.

The document intended to frame Ashley instead exposed its true author.

The Trial and the Verdict

Prosecutors presented a layered case built on toxicology, digital forensics, fingerprints, fabricated legal documents, and financial motive.

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Ashley Wallace during court proceedings. Wallace was cleared of all wrongdoing and identified by prosecutors as a victim of attempted murder and framing.

Ashley testified. She denied writing the note. She described the drink. She survived cross-examination.

The jury convicted Stacey Castor of murder and attempted murder. She was sentenced to decades in prison.

Clearing the Record

Ashley Wallace is innocent.

Ashley Wallace in later years. Wallace’s innocence was affirmed by forensic evidence and court findings.

She did not murder her fathers. She did not write the note. She was poisoned, framed, and survived.

Any retelling that leaves doubt on her name is not balance. It is harm.

What’s Next

The next investigation will examine the disappearance of Brandon Swanson, a case defined by a late-night phone call, a sudden silence, and questions that remain unanswered.

Some cases end with verdicts. Others end with absence. We’re going to examine what that absence contains.


Filed with care.
Written with accountability.
Truth over spectacle. Always.

Thanks for dicking around with Richie.

 RICHIE D. MOWREY
Founder & Editor-in-Chief
The Sassy Gazette

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