Bayer was ordered to pay $2.25 billion after a Pennsylvania jury unanimously ruled that its Roundup weed killer gave a man cancer.John McKivinson, 49, who was diagnosed with non-Hodgkin’s lymphoma, sued Roundup maker Monsanto and its corporate parent, Bayer, saying he developed the cancer after using the herbicide on his property for two decades.The massive payout includes $2 billion in punitive damages, McKivinson’s attorneys at Kline & Specter told The Post on Tuesday.Jury members also found that Monsant ...