Charles Edmund Cullen, known as "The Angel of Death," worked as a nurse in many hospitals. He had to keep switching jobs because he was regularly fired for "suspicious behavior." Suspicious, you say? He confessed to murdering 40 elderly patients in New Jersey. From the years 1984 to 2003, he killed his victims by poisoning his patients to death with un-prescribed medication. He stated that he wanted to relieve patients from suffering, much like an angel does. Experts who have listened to his post-conviction psychological exams believe he may have had more than 400 victims. Cullen, who may hold the deplorable title of most prolific killer in American history, is currently serving a life sentence.
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50 Facts about Serial Killers and Psychopaths
RandomJust a list I took from the internet cuz I figured maybe a lot of people don't use the internet very often so yeah. ( Credits : the internet )