Arnfinn Nesset, Norwegian nurse and convicted serial killer

Arnfinn Nesset is a Norwegian former nurse, nursing home manager, and a convicted serial killer. His crimes include the murders of at least 22 people, as well as attempted murder, document forgery, and embezzlement. He may have murdered up to 138 people. In 1983, he was convicted of poisoning 22 patients and sentenced to 21 years in prison. He served 12 years and 10 years of supervision and is thought to be living under an assumed name.