Description: (Serial killer, Nurse)
Daisy de Melker was a South African nurse who faced accusations of poisoning her two husbands with strychnine for life insurance money. She was ultimately convicted of poisoning her only son with arsenic, although the reasons remain unclear. De Melker is the second woman to have been hanged in South African criminal history. Despite being accused of three murders, she was only convicted of one. Her professional life was overshadowed by the criminal proceedings and legal battles that followed.