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The flu-like symptoms of a mother and her children proved to be indicative something much more serious: thallium poisoning. Investigators had to find the source of the poison... and when the mother died, to determine if the exposure was accidental, or if they also needed to find a killer.
First Air Date : Apr 21, 1996
Last Air date : Jun 17, 2011
Episode : 400 Episode
Season : 14 Season
Runtime: 23:14 minutes
Country: United States of America, Germany
Cast: Peter Thomas
