A North Carolina mother, Gudrun Linda Casper Leinenkugel, is accused of poisoning her daughter with acetonitrile-laced wine during Thanksgiving dinner, killing her and sickening others, while allegedly searching the chemical online beforehand and asking about life insurance afterward. Investigators now believe the case may be part of a disturbing pattern, linking her to a 2007 death involving the same poison and prompting authorities in another state to reexamine her ex-husband’s death. Despite pleading not guilty, the shocking allegations, paired with suspicious behavior and new evidence, have turned the case into a sprawling, multi-death investigation. Law&Crime’s Chris Stewart is On the Case.
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