Casefile True Crime Casefile Extra: Chad Shelton & Duane Johnson
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Oct 24, 2026 An apparent food-poisoning outbreak in Omaha turns deadly when an infant and a healthy young man suffer identical, catastrophic symptoms. As officials trace a pattern through lemonade and milk, a nurse’s discovery exposes deliberate poisoning. The investigation uncovers animal experiments, a violent history, a hidden toxin, and a survivor’s harrowing testimony.
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The Drinks Expose The Common Link
- Epidemiologist J.P. Lofgren found that everyone who drank lemonade or milk became ill, while those who avoided them remained healthy.
- This pattern shifted suspicion from infection toward a toxin in the beverages.
A Strange Lemonade Warning Raises Suspicion
- Detective Kenneth Miller suspected Sandra Johnson after learning she served lemonade despite Susan reporting that it tasted strange.
- Sandra said she dismissed Susan’s warning because pregnancy had altered her sense of taste.
Harper’s Hidden History Comes To Light
- Miller discovered Stephen Harper had previously shot at Sandra’s family and had secretly returned to Omaha.
- A police signature placed Harper in the city four days before the poisonings.