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'Death In Small Doses' true story of Nancy Dillard Lyon and Richard Lyon

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"Death In Small Doses" is a true-story movie based on the murder of Nancy Lyon by her husband Richard Lyon. The true-crime drama first made its debut on ABC on Monday, January 16, 1995. It is directed by Sondra Locke and executive produced by Robert Greenwald. The movie stars Tess Harper, Richard Thomas and Glynnis O'connor, according to the Sun Sentinel.

"Death In Small Doses" synopsis/plot

When a wife mysteriously falls ill and dies, it is revealed that she died by arsenic poisoning. As the police investigation heats up, the woman's husband becomes the prime suspect. A terrible family secret eventually breaks the case and reveals the true killer.

The true-story basis involves the case of a Texas wife who was killed by her own husband. Texas state court records indicate that in 1991, Richard Lyons poisoned wife Nancy Lyon. The case inspired many magazine and newspaper articles, including the Texas Monthly article "The Killer Next Door." Richard Lyons was found guilty in 1992 and sentenced to life in prison.

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