20x lethal dose of arsenic
Dwight Moore's toxicology results showed arsenic levels 20 times the lethal dose, the most ever found in any living person in the history of UNC hospital.
Snapshot · Morbid
Blanche Taylor Moore, The Oldest Woman on Death Row (Part 2)
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Jul 2, 2026
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The Results: 20 Times the Lethal Dose
At 48:55 · chapter starts 48:20
On May 13th, Dwight's toxicology results arrive and they are staggering: arsenic at 20 times the lethal dose, the highest ever found in a living person in the hospital's history — enough to kill a large mammal, according to the author Ash cites. [1] — Ash Kelley "Dr. David Wands ordered a toxicology panel on a hunch, and the results stunned the entire lab: Dwight Moore had arsenic at 20 times the let…" 48:15 The lab was so shocked they triple-checked. Suddenly everything makes sense: arsenic is a heavy metal that appears opaque on X-rays, so the 'bowel obstruction' was actually pooled arsenic, which had worked through Dwight's system by the time surgeons cut him open each time. Dr. Wands confronts Dwight, who insists it must have been the weed killer — but the doctor explains that no household chemical contains that concentration, and the pattern of exposure stretches back almost a year.
Arsenic mistaken for bowel obstruction on X-ray
Pooled arsenic in Dwight Moore's intestines appeared as a solid mass on X-rays because arsenic is a heavy metal that X-rays cannot penetrate, leading to two unnecessary surgeries.
Arsenic Disguised as a Bowel Obstruction
Pooled arsenic in Dwight Moore's intestines looked exactly like a solid mass on X-rays because arsenic is a heavy metal X-rays can't penetrate. Surgeons opened him up twice, pulled out his entire intestines, and found nothing — because by surgery day, the arsenic had already worked through his system.
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