Poison (Topic)

Charles Edmund Cullen (born February 22, 1960) is an American serial killer who confessed to murdering up to 40 patients during the course of his 16-year career as a nurse in New Jersey. However, in subsequent interviews with police, psychiatrists, and journalists, it became apparent that he had killed many more, whom he could not specifically remember by name, though he could often remember details of their murders. Experts have estimated that Cullen may ultimately be responsible for 400 deaths, which would make him the most prolific serial killer in recorded history.

George James Trepal (born January 23, 1949) is an American former chemist and computer programmer who was convicted in February 1991 of murdering his neighbor, Peggy Carr, and attempting to murder her family. He was convicted of poisoning the Carr family, who lived in Alturas, Florida, by adding thallium to multiple bottles of Coca-Cola, and was subsequently sentenced to death by circuit judge Dennis Maloney. As of 2011, Trepal has continued to deny his involvement in Carr's death. After his conviction, Trepal filed numerous appeals, all of which were denied; these culminated in an appeal of his conviction that he filed with the United States Court of Appeals for the Eleventh Circuit, which was denied in 2012.

Richard J. Schmidt is an American former physician who was convicted by a Louisiana court in 1998 of attempted second degree murder, for injecting his girlfriend with HIV. The case marked the first time in forensic history that viral DNA was used to prove a link between two people with Human Immunodeficiency Virus (HIV) or Acquired Immune Deficiency Syndrome (AIDS) in a criminal trial.