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Unsolved Mysteries (1988 – 2010)

1988 • 14 seasons • Drama, Crime • TV-PG
On September 25, 2026
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Season 13

Unsolved Mysteries · S13E9 — Episode #511

Jun 20, 2002

Synopsis

The illness began with a common cold for postal worker Norma Wallace. Initially, her physicians attributed it to influenza and recommended over-the-counter medication. However, as her condition deteriorated, a startling diagnosis emerged: exposure to anthrax spores had left her gravely ill. Soon after, further cases of anthrax poisoning surfaced, triggering a nationwide state of alarm. The unsettling realization dawned that someone was deliberately spreading anthrax through the postal system. Bu