Arsenic passes out of system post-mortem
Arsenic would have passed entirely out of P.D. Keyser's system by autopsy, making toxicological detection impossible even if suspected.
Snapshot · Morbid
Blanche Taylor Moore, The Oldest Woman on Death Row (Part 1)
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Jun 29, 2026
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P.D. Keyser Dies — First Hint of Arsenic
At 29:35 · chapter starts 25:40
September 1966 marks what Ash calls 'one of the more defining moments' of Blanche's life: her father P.D. Keyser dies, officially from a heart attack brought on by emphysema. The death doesn't surprise anyone given his history of smoking and reckless health habits. But a closer examination of the 30 hours before his death reveals a haunting symptom cluster: paralysis in the limbs, painful irritation of the nose and throat, aggressive bloating, burning sensations in hands and feet, and — crucially — a strong scent of garlic on his breath despite not having eaten any. Ash tells the audience that all of these are classic signs of arsenic poisoning. The problem: P.D.'s nomadic lifestyle left no consistent medical record, the busy hospital had no one consistently monitoring him, and by autopsy, arsenic would have long since cleared his system. Blanche's reaction to his death is conspicuously muted — perhaps explained by their toxic relationship, but also, in retrospect, telling.
The Arsenic Symptoms Nobody Named
Paralysis, burning extremities, aggressive bloating, garlic breath without having eaten garlic — every textbook sign of arsenic poisoning was present when P.D. Keyser died in 1966. His nomadic lifestyle and a busy hospital meant nobody connected the dots.
P.D. Keyser's arsenic symptoms
Blanche's father died showing classic arsenic poisoning symptoms — paralysis, burning sensations, bloating — but was ruled a heart attack due to emphysema history.
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