In June, a California groundskeeper will make history by taking company to trial on claims it suppressed harm of Roundup

At the age of 46, DeWayne Johnson is not ready to die. But with cancer spread through most of his body, doctors say he probably has just months to live. Now Johnson, a husband and father of three in California, hopes to survive long enough to make Monsanto take the blame for his fate.

On 18 June, Johnson will become the first person to take to trial on allegations that it has spent decades hiding the cancer-causing dangers of its popular Roundup herbicide products – and his case has just received a major boost.

Last week Judge Curtis Karnow issued an order clearing the way for jurors to consider not just scientific evidence related to what caused Johnson’s cancer, but allegations that Monsanto suppressed evidence of the risks of its weed killing products. Karnow ruled that the trial will proceed and a jury would be allowed to consider possible punitive damages.