An article by Fetzer published by Iranian state-run Press TV and conspiracy theory and fake news website "Veterans Today" titled (by the latter) "Did Mossad death squads slaughter American children at Sandy Hook?" was described in January 2013 by Oliver Kamm in "The Jewish Chronicle" as "monstrous, calumnious, demented bilge" that "violates all bounds of decency". Fetzer was a member of the Advisory Board of "Veterans Today" in 2013. In 2015, Fetzer published a book titled "Nobody Died at Sandy Hook: It Was a FEMA Drill to Promote Gun Control". Leonard Pozner, father of Sandy Hook victim Noah Pozner, sued Fetzer and his co-author, Mike Palacek, for defamation in a Dane County, Wisconsin court. In June 2019, circuit judge Frank Remington found that Fetzer and Palacek had defamed the Pozners, with damages to be awarded at an October 2019 trial. On October 16, 2019, a jury in Wisconsin awarded Leonard Pozner $450,000 for defamation, which was under appeal as of May 2021. Pozner’s son Noah, 6, was the youngest person killed during the mass shooting that left 26 people dead, including 20 children around Noah’s age. The book's publisher, Moon Rock Books, personally apologized to the Pozners and agreed to take the book out of circulation.