How Vile Can Some People Be: The World’s Most Evil and Notorious Serial Killers In History

Charles Edmund Cullen

Charles Cullen is a former nurse and serial murderer from the United States. He has admitted to murdering 40 victims throughout his nursing career. Cullen is thought to have killed over 400 patients, according to police. He had had a difficult and unstable mentality since childhood, and he tried to commit suicide at nine years old.

The killer served as a nurse in many hospitals and killed multiple individuals by administering a medication overdose. He was captured and accused of one murder, although he confessed to having committed other killings previously. As of 2022, he is serving a life sentence without the possibility of release for more than 100 years.

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