
Charles Edmund Cullen (born February 22, 1960) is an American serial killer. While working as a nurse, Cullen murdered dozens—possibly hundreds—of patients during a 16-year career spanning several New Jersey and Pennsylvania medical centers until finally being arrested in 2003. He confessed to commi…

This documentary reveals how investigators proved ICU nurse Charles Cullen was killing patients — and how close he came to getting away with murder.