The lawsuit alleged that the exposure of glyphosate, an active ingredient in the Roundup product, caused Dewayne "Lee" Johnson's non-Hodgkin lymphoma.
[9] Dewayne "Lee" Johnson, the plaintiff in this case, sprayed hundreds of gallons of RoundUp over the course of his career as a school groundskeeper in Benicia, California.
[10] Johnson still survived and attended a showing of Into the Weeds, a Canadian Broadcasting Corporation documentary directed by Jennifer Baichwal about his illness and the case against Montsanto, which was screened for a single day across the U.S. on October 3, 2023.
[13] The consensus among national pesticide regulatory agencies and scientific organizations is that labeled uses of glyphosate have demonstrated no evidence of human carcinogenicity.
The final assessment of the Australian Pesticides and Veterinary Medicines Authority in 2017 was that "glyphosate does not pose a carcinogenic risk to humans".