The story of an apparently respectable woman involved in serious crimes against vulnerable individuals.
A House in a Sacramento Neighborhood
In 1980s Sacramento, a Victorian house with white shutters became the center of a highly significant criminal case. Its owner, Dorothea Puente, was known in the neighborhood as a polite woman, passionate about gardening and willing to host people in need.
Over time, however, investigations revealed that behind this public image lay systematic criminal activities.
A Past Marked by Instability and Crime
Born in 1929 in Redlands, California, Dorothea Puente had a troubled childhood. The daughter of parents struggling with alcoholism, she lost her father at the age of eight and her mother shortly thereafter. Orphaned, she was placed in an institution. Some sources report that she may have experienced abuse during childhood—experiences that could have influenced her psychological development.
Beginning in the 1960s, Puente started using false identities, at times posing as a nurse, doctor, or war widow. This ability to assume different roles allowed her to gain the trust of people in vulnerable conditions. She was arrested multiple times for fraud, embezzlement, and irregular management of boarding houses, but her sentences were relatively short, enabling her to return quickly to freedom.
In 1982, after a brief detention for unauthorized administration of medications and theft, she resumed operating a boarding house in a large Victorian home in Sacramento. She offered lodging to elderly individuals, people with mental disorders, the homeless, former inmates, and individuals struggling with addiction.
Despite her criminal record, oversight by authorities was limited and inconsistent.
Within this context, Puente began poisoning some of her tenants, later burying their bodies in the garden of the property. Meanwhile, she continued cashing their Social Security checks, maintaining an appearance of normalcy with neighbors.
The Victims and the Modus Operandi
At least nine victims were confirmed, although the formal conviction concerned three murders. The victims were primarily individuals in conditions of social and medical vulnerability, often lacking strong family support. Their marginalization contributed to delays in uncovering the crimes.
From a forensic standpoint, a key element was the systematic use of benzodiazepines, particularly flurazepam, to sedate victims. These medications, prescribed for anxiety and sleep disorders, can cause severe effects when taken in high doses or over prolonged periods—especially in vulnerable individuals.
Flurazepam is a long-acting benzodiazepine metabolized into active compounds that remain in the body for an extended period. With repeated administration or when combined with other sedative substances, progressive accumulation can occur.
In fragile individuals, this accumulation may lead to deep sedation, coma, or death. Clinical studies highlight that combining benzodiazepines with alcohol or other sedatives can result in significant central nervous system depression(American Psychiatric Association, DSM-5, 2013).
According to investigative reconstructions, Puente regularly administered these medications, causing progressive poisoning. The bodies were then concealed in the garden. The use of pharmaceutical substances made it more difficult to promptly identify the cause of death.
This case highlights the risks associated with the misuse of sedative medications and underscores the importance of strict adherence to medical prescriptions and vigilant oversight in care settings.
The Financial Motive
The primary motive proved to be financial gain. After her tenants’ deaths, Puente continued collecting their Social Security checks, fraudulently accumulating approximately $87,000 in benefits.
At the same time, she maintained cordial relationships with neighbors and participated in community life, avoiding immediate suspicion.
The combination of financial fraud and homicide made the case particularly significant from a judicial standpoint, as it demonstrated how abuse of a position of trust could be exploited for economic purposes.
Discovery of the Crimes
In November 1988, a social worker reported the disappearance of Bert Montoya, a man with an intellectual disability. The report led to an investigation at Puente’s residence.
During the search, investigators noticed an odor coming from the garden and began excavations, uncovering seven bodies buried and wrapped in bags or sheets.
During the investigation, Puente left Sacramento and traveled to Los Angeles, where she was later recognized and arrested.
During the trial, she denied the charges, claiming she had tried to help people in need. However, collected evidence and witness testimony proved decisive. In 1993, she was sentenced to life imprisonment without the possibility of parole. She died in prison in 2011 at the age of 82.
Psychological Aspects
The case attracted the attention of criminologists and forensic psychologists interested in analyzing possible personality traits involved. Some scholars hypothesized the presence of personality disorders, particularly antisocial or narcissistic personality disorder, characterized by interpersonal manipulation, disregard for social norms, and limited empathy.
Others described a form of so-called “functional psychopathy”, in which an individual maintains apparent social integration while displaying problematic traits.
Unlike other serial homicide cases driven by sadistic or sexual impulses, this case was predominantly motivated by economic interests. The crimes were oriented toward control and concealment, rather than overt violence.
Systemic Oversight Failures
The case exposed serious gaps in social and healthcare supervision systems. The lack of adequate periodic inspections, insufficient coordination between agencies, and poor follow-up on reports contributed to an environment in which abuse could continue over time.
Caring for vulnerable individuals requires effective monitoring procedures, clear standards, and shared accountability. Preventing similar situations depends on regular oversight and timely communication between institutions.
Healthcare Perspectives and Abuse Prevention
The case of Dorothea Puente also offers important reflections from a nursing and healthcare management perspective.
Providing care to elderly individuals, people with psychiatric disorders, cognitive disabilities, or socially marginalized conditions requires clinical competence, observational skills, and strict adherence to ethical and professional standards.
A central issue concerns safe medication management. Benzodiazepines such as flurazepam require particular caution, especially in older adults. Nurses play a crucial role in:
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Verifying correct medical prescriptions
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Monitoring therapeutic effects and potential adverse reactions
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Identifying signs of overdose or drug accumulation
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Ensuring accurate medication administration documentation
In fragile patients, warning signs such as excessive sedation, sudden confusion, decreased consciousness, postural instability, or respiratory depression must be considered red flags requiring immediate evaluation.
Another essential aspect involves recognizing potential abuse or neglect. Nursing staff in home or residential settings are often among the first professionals able to observe suspicious changes, such as:
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Unexplained clinical deterioration
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Discrepancies in medical documentation
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Abnormal patient isolation
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Inconsistencies between clinical conditions and caregiver reports
Training in safeguarding vulnerable individuals is therefore essential. Nurses carry not only clinical responsibilities but also ethical and legal obligations to report potentially dangerous situations to the appropriate authorities.
From an organizational standpoint, the case highlights the importance of:
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Clear protocols in residential facility management
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Periodic audits of medication administration
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Coordination between social and healthcare services
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Regular supervision of facilities housing vulnerable individuals
Modern nursing care is grounded in the principle of person-centered care and the promotion of patient safety. This includes preventing therapeutic errors, protecting against abuse, and fostering a transparent and monitored care environment.
Ultimately, the case underscores the critical importance of promoting a professional culture based on ethics, accountability, and vigilance. The relationship of trust between patient and caregiver is one of the pillars of healthcare—and for this very reason, it must be supported by adequate oversight systems and continuous professional training.
Integrating clinical expertise, relational awareness, and effective supervisory mechanisms is fundamental to ensuring that similar situations do not recur, thereby safeguarding the health and dignity of the most vulnerable individuals.
Final Reflections
More than thirty years later, the case of Dorothea Puente continues to be studied for its judicial, psychological, and social implications. It highlights the necessity of protecting fragile individuals through adequate support networks and effective control systems.
In a context marked by population aging and increasing social isolation, strengthening care services and oversight measures remains essential to ensuring dignity, safety, and protection for society’s most vulnerable members.
Sources:
Main sources on the case
1. Encyclopedia / General Profile
Wikipedia contributors. (n.d.). Dorothea Puente. In Wikipedia, The Free Encyclopedia. https://en.wikipedia.org/wiki/Dorothea_Puente
2. Historical News Article (UPI)
Informant says Puente admitted killing boarders. (1990, May 10). UPI Archives. https://www.upi.com/Archives/1990/05/10/Informant-says-Puente-admitted-killing-boarders/1186642312000/
3. UPI – Trial Details
Boardinghouse landlady charged with 9 murders. (1989, March 31). UPI Archives. https://www.upi.com/Archives/1989/03/31/Boardinghouse-landlady-charged-with-9-murders/6198607323600/
4. UPI – Sources on the Medications Involved in the Crime
Accused mass killer got drugs from therapist. (1989, March 25). UPI Archives. https://www.upi.com/Archives/1989/03/25/Accused-mass-killer-got-drugs-from-therapist/1593606805200/
5. Associated Press / CBS News
Female serial killer dies in Calif. prison. (2011, March 28). Corrections1.com (da Associated Press). https://www.corrections1.com/women-in-corrections/articles/female-serial-killer-dies-in-calif-prison-MxWzGCP73ha2h0ol/
6.Useful Secondary Sources (for Further Insight into Context and Dynamics)
Scheeres, J. (n.d.). Dorothea Puente: Sleeping Pills – Dorothea Puente, Killing for Profit. Crime Library. https://www.crimelibrary.org/notorious_murders/women/puente/15.html
Sources for the Nursing/Healthcare Section
1. American Geriatrics Society – Beers Criteria (International Reference on Appropriate Medication Use in Older Adults)
American Geriatrics Society Beers Criteria® Update Expert Panel. (2023). American Geriatrics Society 2023 updated AGS Beers Criteria® for potentially inappropriate medication use in older adults. Journal of the American Geriatrics Society, 71(7), 2052–2081. https://doi.org/10.1111/jgs.18372
2. Choosing Wisely Italia – Recommendations on the Use of Benzodiazepines in Older Adults
Choosing Wisely Italia. (2018). Non usare le benzodiazepine o altri ipnotici negli anziani come prima scelta nell’insonnia. https://choosingwiselyitaly.org/raccomandazione-prof/non-usare-le-benzodiazepine-o-altri-ipnotici-negli-anziani-come-prima-scelta-nellinsonnia/
3. AIFA – Medication Safety in the Elderly Population
Agenzia Italiana del Farmaco (AIFA). (2022). Rapporto OsMed – L’uso dei farmaci nella popolazione anziana in Italia. https://www.aifa.gov.it/rapporti-osmed
4. Mayo Clinic Proceedings – Risks of Benzodiazepines in Older Adults
Markota, M., Rummans, T. A., Bostwick, J. M., & Lapid, M. I. (2016). Benzodiazepine use in older adults: Dangers, management, and alternative therapies. Mayo Clinic Proceedings, 91(11), 1632–1639. https://doi.org/10.1016/j.mayocp.2016.07.024
5. World Health Organization – Patient Safety and Medication Management
World Health Organization. (2017). Medication without harm: WHO global patient safety challenge. https://www.who.int/publications/i/item/WHO-HIS-SDS-2017.6
© Samanta Sforna – All rights reserved.