Stella Nickell laced painkillers with cyanide in a calculated bid for insurance payouts that claimed two lives in Washington state.
Stella Nickell turned to poison as a means to resolve financial pressures and personal frustrations. Her actions in 1986 resulted in the deaths of her husband and an unrelated woman who purchased the same brand of medication from a local store. The case stood out because it mimicked the 1982 Tylenol tampering incidents that had occurred several years earlier in Chicago.
Nickell constructed a scenario that initially appeared as random product contamination. Authorities later determined the contamination originated from her own actions rather than a manufacturing fault or external tamperer. This distinction shaped the direction of the federal investigation that followed.
Background
Stella Nickell grew up in the Pacific Northwest and married Bruce Nickell in the early 1970s. The couple lived in Auburn, Washington, where Bruce worked in a local aluminium plant. Stella held various jobs, including work at a local bank and later as an animal groomer. Their marriage experienced periods of strain, with reports of arguments over money and lifestyle.
Bruce Nickell had taken out several life insurance policies in the years before his death. These policies listed Stella as the primary beneficiary and offered payouts that totalled more than $175,000. Stella later admitted in court documents that the existence of these policies influenced her planning.
The Crimes
Death of Bruce Nickell
On 11 June 1986 Bruce Nickell complained of a headache and took two capsules from a bottle of Excedrin Extra Strength. He collapsed shortly afterwards and died at a hospital later that day. Initial medical examination attributed the death to emphysema, a condition Bruce had been diagnosed with previously.
Stella collected the insurance money within weeks. She used portions of the payout to purchase a new car and make home improvements. Friends and family noted her apparent lack of prolonged grief during this period.
Death of Susan Snow
Six days later Susan Snow, a bank manager from nearby Kent, purchased an identical bottle of Excedrin from a local store. She took two capsules on 17 June 1986 and died the same evening. An autopsy revealed cyanide poisoning. Health officials issued a public warning and removed thousands of Excedrin bottles from shelves across the region.
Investigators recovered four additional contaminated bottles from stores in the area. Each contained a mixture of cyanide and aluminium shavings that matched material from Bruce Nickell’s workplace. The presence of these shavings proved central to linking the deaths to a single individual rather than industrial sabotage.
Investigation
Federal agents from the Food and Drug Administration and the FBI joined the local police task force. They examined manufacturing records and ruled out factory contamination within days. Attention then turned to individuals who had purchased Excedrin in the weeks before the deaths.
Stella Nickell contacted authorities multiple times with suggestions about possible suspects. She also provided information about her own purchase of the product. Her repeated involvement raised suspicions among investigators who began to review her financial records and insurance claims.
Laboratory analysis showed that the cyanide in the capsules came from the same batch. The aluminium particles traced directly to the plant where Bruce Nickell had worked. These physical links narrowed the suspect pool to people connected to that workplace.
Trial and Conviction
Stella Nickell stood trial in federal court in Seattle in 1988. Prosecutors presented evidence of her insurance claims, her history of animal cruelty documented by neighbours, and statements from her daughter who testified about discussions of poisoning methods. The jury convicted her on two counts of murder and other related charges.
The court sentenced Nickell to two consecutive ninety-year terms. She remains incarcerated at a federal facility. Appeals based on the reliability of witness testimony and forensic methods have been unsuccessful.
Psychological Profile
Court-appointed psychologists noted patterns of manipulative behaviour and a history of seeking attention through crises. Nickell had previously been investigated for suspected animal poisonings, though no charges resulted at the time. These earlier incidents suggested a familiarity with toxic substances that carried over into the 1986 crimes.
Experts described her actions as premeditated and motivated primarily by financial gain rather than emotional rage. The attempt to disguise the murders as random tampering indicated a deliberate effort to deflect suspicion onto unknown third parties.
Legacy and Impact
The case prompted stricter federal regulations on over-the-counter medication packaging. Tamper-evident seals became mandatory nationwide following the investigation. Pharmaceutical companies also increased internal security measures at production facilities.
Public awareness of product tampering risks rose again after the Nickell convictions. The case is frequently cited in discussions of domestic homicide disguised as random violence. It remains one of the few documented instances in which cyanide served as the primary murder weapon in a serial poisoning scheme within the United States.
Conclusion
Stella Nickell’s crimes exposed vulnerabilities in both insurance systems and consumer product safety. The deaths of Bruce Nickell and Susan Snow resulted directly from deliberate contamination rather than external interference. The investigation demonstrated how physical evidence and financial records can unravel an attempt to mask personal motive as random tragedy.