Shelton suffers from non-Hodgkin lymphoma (NHL) and alleges that exposure to Monsanto’s Roundup weed killer, and other company herbicide brands made with glyphosate, caused him to develop NHL. On January 1, 2022, he served a trial subpoena on Former Monsanto CEO, Mr. Hugh Grant, commanding that he appear for the February 1, 2022 trial to testify. On January 11, 2022, Mr. Grant filed a motion for a protective order barring Plaintiff from subpoenaing him to testify at trial. On March 9, 2022, Plaintiff filed a trial subpoena commanding Mr. Grant to appear and give trial testimony on May 6, 2022. On March 31, 2022, Respondent denied Mr. Grant’s motion for a protective order and ordered Mr. Grant to appear and give testimony in the May 2, 2022 trial of the claims of Plaintiff Allan Shelton. On April 8, 2022, Mr Grant appeals and requests that the Missouri Court of Appeals issue a preliminary order in and permanent writ of prohibition directing Respondent to take no further action other than granting Relator’s motion for a protective order in full and quashing Plaintiffs’ trial subpoena. Monsanto lawyers say the Court should issue a writ of prohibition barring Respondent from doing anything other than granting Relator’s motion for a protective order in full. On Apr. 15, 2022 the Missouri Court of Appeals Western District denied Grant's petition. On May 3, 2022, trial starts in Kansans City. On June 10, 2022, the jury dismissed claims by Allan Shelton, agreeing with the company that the weed killer was not the source of the plaintiff's disease.