A neonatal nurse who confessed to killing at least ten infants in her care over three years, Fikáčková carried out her crimes in a hospital obstetrics ward — an environment of trust and vulnerability that gave her sustained, unsupervised access to victims who could offer no resistance. The motives she offered were contradictory and difficult to verify, and the court was only able to prove two of the killings, though her own admissions suggested a far wider pattern of violence. She was executed in 1961 at the age of twenty-four.

Graham's case drew particular attention less for the killings themselves than for what followed — seven victims whose remains were kept in a single Philadelphia apartment, undiscovered for roughly a year. The concentrated timeline and the conditions in which the bodies were found made this one of the more disturbing urban serial killer cases of the 1980s. His conviction on all counts resulted in a death sentence later reduced to life imprisonment.

Her community reputation — warm, helpful, trusted with the sick and the elderly — was precisely what made her so dangerous for so long. Operating in Leiden over roughly three years, she used arsenic to poison more than a hundred people, killing at least twenty-seven, with financial gain through insurance payouts and inheritance as her consistent motive. The gap between her confirmed convictions and the full suspected scale of her crimes reflects both the difficulty of detection in the era and the cover her social role provided.

A senior Waffen-SS commander decorated for battlefield performance, Wagner's postwar fate was shaped not by his military record but by what lay behind it — orders for the mass execution of civilians during the occupation years. Extradited to Yugoslavia and tried before a military tribunal in 1947, the precise charges were not made public, though the civilian killings reportedly formed the core of the case against him. He was executed that same year.

His 1899 work The Foundations of the Nineteenth Century reached an enormous audience across Europe and America, providing a veneer of intellectual respectability to racial hierarchy and antisemitism at a moment when such ideas were gaining institutional traction. Chamberlain's framework directly influenced figures in the emerging National Socialist movement, and Adolf Hitler visited him in 1923, describing the encounter as formative. The durability of his influence lay less in originality than in synthesis — he drew on science, philosophy, and cultural prestige to lend coherence to prejudices that others would later translate into policy.