Italian Supreme Court acquits Daniela Poggiali — international healthcare-serial-killer overturning

The Italian Supreme Court (Corte di Cassazione) acquits Daniela Poggiali, an Italian nurse convicted in 2016 of murdering a patient at Lugo hospital using potassium chloride. The acquittal follows independent expert review finding the statistical pattern evidence and toxicological findings unreliable. The case stands as the most recent international example of healthcare-serial-killer conviction overturning on the same methodological grounds at issue in the Letby case (selection-effect statistical evidence, contested biochemical findings). Listed retrospectively in the timeline because the parallel becomes evidentially significant for the post-2024 Letby pathway.