Terrifying History on Instagram: "Kimberly Clark Saenz, a former nurse at a DaVita dialysis clinic in Lufkin, Texas, was convicted in 2012 of murdering five patients and injuring five others by injecting bleach into their dialysis lines. The crimes occurred between January and April 2008, with victims experiencing sudden, catastrophic medical distress during treatment. Forensic evidence showed abnormally high bleach levels in the patients’ bloodstreams, and surveillance footage placed Saenz at t