A jury has awarded $450,000 to Leonard Pozner, the father of a boy killed in the 2012 shooting at Sandy Hook school in Newtown, Connecticut, in a defamation lawsuit against a conspiracy theorist writer.

In June, a Wisconsin judge had ruled that James Fetzer had defamed Pozner by asserting he had fabricated the death certificate of his son Noah. Fetzer, who co-wrote Nobody Died at Sandy Hook, has said that he will appeal the judgment. Noah, aged six, was the youngest of 26 people killed in the school shooting in which 20-year-old Adam Lanza murdered 26 people, including 20 children between six and seven years old, and six adult staff members.

In the Dane County court in Wisconsin, Pozner thanked the jury for acknowledging "the pain and terror that Mr. Fetzer has purposefully inflicted on me and on other victims of these horrific mass casualty events, like the Sandy Hook shooting."

In his book, written with co-author Mike Palacek, Fetzer claimed that the Sandy Hook shooting was a hoax, contrived by the Obama administration as part of an effort to enforce tighter gun laws. The book and a blog post by Fetzer included numerous false statements about Noah's death certificate, including allegations that Pozner had disseminated fabricated copies. Pozner, who reached a settlement with Palacek last month, had not disclosed the terms of the agreement.

On Tuesday, Pozner stressed that the case was not about First Amendment protections for free speech. "Mr. Fetzer has the right to believe that Sandy Hook never happened. He has the right to express his ignorance," he said, according to the Wisconsin State Journal. "This award, however, further illustrates the difference between the right of people like Mr. Fetzer to be wrong and the right of victims like myself and my child to be free from defamation, free from harassment and free from the intentional infliction of terror."

Pozner's lawyer Genevieve Zimmerman said Fetzer's claims in both the 2015 book and 2018 blog post were "alt-right opium." Pozner’s case is one of several defamation cases that have resulted from the Sandy Hook massacre. He and Noah's mother, Veronique De La Rosa, have also sued well-known conspiracy theorist and radio personality Alex Jones for defamation. The pending case is one of at least that Jones faces.

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Last week, a Texas court ruled that Jones could not invoke free-speech law to end another lawsuit, filed by Scarlett Lewis, the mother of Sandy Hook victim Jesse Lewis, also six years old at the time of her murder.

Parents of Sandy Hook victims who have chosen to speak publicly about their pain and trauma have often been the target of trolls, both online, as well as in person.