Stella Bradham, an 85-year-old white female, died on November 26, 1984, in St. Petersburg, Florida, under suspicious circumstances while residing at the North Horizon Nursing Home. Initially, her death was believed to be the result of a stroke, as she had slipped into a coma four days earlier. However, her family and caregivers expressed concern over the suddenness of her decline, especially given her previously stable health.
Her granddaughter, Cecilia Bradham Mansfield, noted that Stella did not look like herself at the funeral, a detail that lingered in her memory and raised doubts about the official cause of death.
During the month of November 1984, North Horizon experienced an alarming spike in fatalities. Between November 13 and 23, seven residents died unexpectedly. Then, in a 24-hour period beginning on November 26—the day Stella Bradham died—five more patients passed away. The timing of these deaths, often occurring during the overnight shift, prompted staff and investigators to suspect foul play. A nurse at the facility, Bobbie Sue Dudley, claimed she had been stabbed during a break-in on November 27, further complicating the situation. However, her minor injuries and inconsistent account raised suspicions among detectives.
Investigators discovered that Dudley, a registered nurse with a history of mental illness and a prior loss of her nursing license in Illinois, had been present during every one of the twelve deaths at North Horizon. She had also been admitted to a state mental hospital shortly after the alleged stabbing incident. A breakthrough came when 94-year-old resident Anna Larson survived an insulin overdose despite not being diabetic. Insulin was found missing from a locked cabinet to which Dudley had access.
Authorities exhumed nine bodies, including that of Stella Bradham, to conduct autopsies. Stella’s autopsy revealed a fractured hyoid bone, indicating strangulation. Investigators theorized that when an insulin injection failed to kill her quickly, she was manually strangled. This discovery confirmed her death as a homicide.
Bobbie Sue Dudley was eventually indicted for four murders, including that of Stella Bradham, and the attempted murder of Anna Larson. She pleaded guilty to second-degree murder and was sentenced to 65 years in prison, with an additional 30 years for the attempted murder. Though only four murders were formally charged, investigators believed Dudley was responsible for all twelve deaths at the facility. Stella Bradham’s tragic death became a pivotal case in exposing a serial killer operating within a trusted eldercare institution.
