Aldo Serini, a 70-year-old white man, died on September 23, 1993, inside the Veterans Affairs Medical Center in Northport on Long Island, where he had been placed in the hands of people sworn to heal. In the rhythm of a hospital day—medication rounds, quiet conversations in corridors, the steady beep of machines—nothing about his final hours was supposed to look like a crime. But in later court accounts, the end of his life would be described not as a natural decline, but as a killing carried out with injections of toxic substances that pushed his body into respiratory failure.
As the months passed in 1993, Serini’s death came to be seen as part of a dark pattern at Northport: multiple patients dying in ways that raised questions, and a young physician, Michael J. Swango, moving through the wards amid the confusion.
Investigators and prosecutors would later allege that Swango’s method was both intimate and clinical—poison delivered by needle—leaving little behind that looked dramatic in the moment, and making the deaths easy to misread as the ordinary tragedies of serious illness.
Long before Northport, Swango had already cast a shadow across other workplaces. His history included a conviction for poisoning co-workers in Illinois, and, despite that, he managed to obtain medical positions by misrepresenting his past. By the time federal authorities focused on the Northport deaths, he was already in custody elsewhere for lying to get medical work, and prosecutors said the New York murder case arrived just as he was nearing release from a prison sentence tied to those deceptions.
When the case crystallized, the suspect list narrowed to one name. Swango was indicted and accused of murdering three patients at the Northport VA in 1993, including Serini, and the allegations painted a picture of someone who didn’t just administer toxins but also manipulated paperwork and clinical decisions to keep others from intervening. In reporting on the prosecution, investigators said that in some instances he told staff that families had issued “do not resuscitate” orders, a claim prosecutors said was used to blunt life-saving efforts at the critical moment.
The legal outcome was decisive. Swango pleaded guilty to the killings of Serini and the other Northport patients as part of a plea arrangement, admitting in court that he intentionally caused death by administering toxic substances, and a federal judge sentenced him to life in prison without parole. In accounts that followed, prosecutors and investigators also described additional suspected poisonings in other places—enough that the Northport deaths were framed not as an isolated event, but as one chapter in a far larger trail of harm.
