Stacey Castor, a Syracuse, New York, woman nicknamed the “Black Widow,” was convicted of murdering her two husbands, Michael Wallace and David Castor, with antifreeze. She also attempted to kill her daughter, Ashley, to frame her for the crimes, according to investigative reports and court findings.
How did investigators link the deaths of Michael Wallace and David Castor?
Michael Wallace died on January 11, 2000, after experiencing coordination loss, difficulty speaking, and vomiting. While doctors initially attributed his death to a heart attack, Castor declined an autopsy and later collected a $55,000 life insurance policy, according to BBC News.

In August 2005, David Castor was found dead in his bedroom. Investigators discovered a glass containing green liquid and a bottle of antifreeze at the scene. Sergeant Michael Norton noted that while suicide was an initial hypothesis, David had been excluded from his own will days before his death.
The connection between the two deaths was confirmed in September 2007 when authorities exhumed Wallace’s body. A forensic report revealed Wallace had died from antifreeze poisoning, matching the method used on David Castor, according to Forensic Files. Prosecutor Bill Fitzpatrick stated the symptoms in both cases were identical.
Did You Know? Police found a turkey thermometer containing David Castor’s DNA and traces of antifreeze, which helped investigators suggest the poison was administered intentionally.
What evidence implicated Stacey Castor in the attempt on her daughter’s life?
As the investigation into her husbands intensified, Castor allegedly attempted to frame her 20-year-old daughter, Ashley. After inviting Ashley to drink, Castor drugged her on two separate occasions; Bree, the younger daughter, eventually found Ashley unconscious, according to reports.

Police recovered a “suicide” note near Ashley that confessed to the murders of Wallace and Castor. The note contained the misspelling “antifree,” a term that matched a slip of the tongue Castor made during police interrogations, as reported by BBC News.
Digital evidence provided the final link. Agents located drafts of the fraudulent suicide note on the family computer, proving the document was not written by Ashley. Detective Dominick Spinelli told All That’s Interesting that fingerprints on the glass also suggested the liquid was forced into the victim’s mouth.
Expert Insight: The convergence of linguistic errors in the suicide note and digital footprints on the family computer transformed a circumstantial investigation into a definitive case of premeditated murder and attempted framing.
How could the Castor case continue to affect the surviving family?
In February 2009, a jury found Castor guilty of second-degree murder, attempted murder, and forgery. She was sentenced to 51 years in prison, though she maintained her innocence throughout the proceedings, according to All That’s Interesting.
Castor died of a heart attack in prison in June 2016. The legal battle and her actions have left the family permanently fractured. While Castor’s mother has continued to defend her daughter’s innocence, Ashley remains a direct victim of the attempted murder, having been only 11 years old when her father died.
The legacy of the case may continue to be defined by the deep division between the surviving family members and the trauma experienced by the daughters.
Frequently Asked Questions
What was the motive behind the crimes?
According to People, the investigation suggested that Castor’s actions were driven by ambition and the desire to inherit her husbands’ estates through forged wills.

How was the first death eventually reclassified?
The death of Michael Wallace was reclassified from a heart attack to antifreeze poisoning following a 2007 exhumation and forensic analysis, according to Forensic Files.
What happened to Stacey Castor after her conviction?
Castor served time for her crimes until she passed away from a heart attack in prison in June 2016.
How do you define the impact of a crime when the perpetrator is no longer alive to face the consequences?
