SAN FRANCISCO, California (KGO-TV) - In August, a jury found the use of Bayer Monsanto's glyphosate-based weed killers, Roundup and Ranger Pro, caused cancer in Dewayne Johnson. The jury awarded a school groundskeeper Dewayne Johnson $289.2 million in August. The original verdict sent German conglomerate Bayer stocks tumbling. Monday they fell...