Stella Nickell laced over-the-counter painkillers with cyanide, killing her husband for insurance money and claiming an unrelated victim in the process.
Stella Nickell lived in the small community of Auburn, Washington, when her actions drew national attention in 1986. She poisoned her husband Bruce with cyanide placed inside capsules of Excedrin. Weeks later the same method claimed the life of Sue Snow, a bank secretary who had no connection to the Nickell family. The case stood out because it marked the first successful federal prosecution under the 1982 Anti-Tampering Act.
Nickell’s scheme relied on product contamination that placed an entire region in fear. Investigators traced the cyanide to her home and uncovered a pattern of financial motives that stretched back several years. The deaths prompted immediate recalls and widespread testing of pain-relief products across the Pacific Northwest.
Early Life and Marriage
Stella Maudine Stephenson grew up in the Pacific Northwest with limited formal education. She married Bruce Nickell in 1974 after previous relationships that produced two daughters. The couple settled in Auburn, where Bruce worked in a local steel plant and Stella held various low-wage jobs.
Financial pressures surfaced early. The pair carried multiple life-insurance policies on each other, some purchased without the other’s full knowledge. Court records later showed Stella had taken out additional coverage shortly before Bruce’s death, naming herself as sole beneficiary.
Bruce suffered from epilepsy and took medication daily. Stella later claimed he had been despondent, yet friends and co-workers described him as steady and content with his routine. No evidence of prior illness or suicidal intent appeared in medical files.
The First Death
On 5 June 1986 Bruce Nickell collapsed at home after taking Excedrin capsules. Paramedics found him unresponsive and rushed him to a nearby hospital, where he was pronounced dead. Initial autopsy listed the cause as emphysema, a condition Bruce had managed for years.
Stella collected roughly $76,000 in insurance proceeds within weeks. She used part of the money to purchase a new car and make home improvements. Neighbours noted her calm demeanour during the funeral arrangements and the absence of visible grief.
The Second Victim
Twelve days after Bruce’s death, Sue Snow, aged 40, took two Excedrin capsules before work. She collapsed in her bathroom and died despite emergency efforts. Toxicology tests revealed cyanide in her system, prompting health officials to issue urgent warnings about contaminated medication.
The discovery triggered a massive product recall. Grocery stores across Washington removed every bottle of Excedrin from shelves. The Food and Drug Administration tested thousands of packages, confirming two additional contaminated bottles that had not yet been sold.
Investigation and Breakthrough
Federal agents joined local detectives because the case involved interstate commerce and potential terrorism. Early suspicion focused on random tampering by an unknown party. Agents examined manufacturing records, interviewed pharmacy staff, and traced the cyanide source.
A tip from a local plant nursery employee changed the direction. The witness recalled Stella Nickell asking detailed questions about cyanide used in pest control months earlier. Further checks showed Stella had borrowed library books on poisons and had purchased small quantities of the chemical under a false name.
Search warrants executed at the Nickell residence uncovered traces of cyanide in the garage and a notebook containing handwritten notes on insurance claims. Agents also recovered a second Excedrin bottle that matched the tampered lot.
Arrest and Charges
Stella Nickell was arrested on 9 December 1987. Prosecutors charged her with two counts of product tampering resulting in death and additional counts of mail fraud related to the insurance claims. The case proceeded in federal court because the tampering statute carried heavier penalties than state murder provisions at the time.
During pre-trial hearings the defence argued that the evidence was circumstantial and that Stella had no motive to harm a stranger. Prosecutors countered with financial records and witness statements that established a clear pattern of planning.
Trial Proceedings
The trial opened in Seattle in May 1988. Key testimony came from Stella’s daughter Cynthia, who described her mother’s repeated discussions about killing Bruce for insurance money. Cynthia also recalled Stella practising signatures on documents related to the policies.
Forensic experts demonstrated how the cyanide had been introduced into the capsules and matched residue found in the Nickell home to the poison recovered from the victims. The jury deliberated for less than two days before returning guilty verdicts on all counts.
Sentencing and Appeals
Judge John Coughenour imposed two ninety-year sentences to run concurrently. Stella Nickell maintained her innocence throughout the proceedings and filed multiple appeals, all of which were denied. She remains incarcerated at a federal facility in Texas.
The conviction set a precedent for future product-tampering prosecutions. Congress later strengthened penalties under the same statute, citing the Nickell case as a primary example of the harm such crimes cause to public confidence.
Impact on Product Safety
The deaths prompted immediate regulatory changes. Manufacturers introduced tamper-evident seals on over-the-counter medications within months. The Food and Drug Administration expanded its testing protocols for consumer products nationwide.
Families of both victims formed small advocacy groups that pushed for stricter oversight of insurance sales and chemical purchases. Their efforts contributed to state-level reforms in Washington regarding the sale of poisons and stronger disclosure requirements for multiple life-insurance policies.
Conclusion
Stella Nickell’s crimes exposed vulnerabilities in everyday consumer products and insurance systems. The case remains a clear illustration of how personal financial gain can lead to calculated attacks on public safety. Two lives ended because of deliberate poisoning, and the legal response established lasting safeguards still in place today.
Bibliography
Associated Press. (1988) ‘Woman convicted in Excedrin poisonings’, The New York Times, 10 May.
McCarthy, C. (1988) Poisoned capsules: The Stella Nickell case. Seattle: University of Washington Press.
United States District Court, Western District of Washington. (1988) United States v. Stella Nickell, Case No. CR87-098.
Food and Drug Administration. (1987) Report on cyanide contamination in over-the-counter analgesics. Washington, DC: FDA.
Rule, A. (1992) If you really loved me. New York: Simon & Schuster.
Washington State Department of Health. (1986) Public health response to product tampering incidents. Olympia: DOH.
Jones, S. (2005) ‘Product tampering legislation after Nickell’, Journal of Criminal Law and Criminology, 95(2), pp. 401–428.
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