A movie and also documentary recently released. This one hits close to home as he worked in nine hospitals in NJ/PA over 14 years and is known to have killed dozens of patients. Made me think back to if any family members were in those hospitals in his chronology. They estimate he may have killed around 400 patients and they probably have a statistical basis to support that, which is mind-numbing and would make him by far the worst serial killer in U.S. history. The documentary is well done with the central characters all interviewed.
https://www.netflix.com/title/81260083
https://www.netflix.com/title/81512108
https://www.netflix.com/title/81260083
https://www.netflix.com/title/81512108