James Henry Fetzer (born December 6, 1940) is an American professor emeritus of the philosophy of science at the University of Minnesota Duluth, known for promoting conspiracy theories and Holocaust denial.

[8][9][10][11][12] In October 2019, a Wisconsin court ordered Fetzer to pay the father of a Sandy Hook victim $450,000 in a defamation case.

[13][14][15][16] Fetzer's views have been featured by Iran's PressTV, Fars, and Tasnim news agencies and the pro-Russian website Veterans Today,[citation needed] which have been described as sources of state propaganda.

[17] In an interview Fetzer supported Iranian and Russian media as "Press TV, along with RT and Sputnik News, have become the gold standard for reporting on international events and developments."

"[19] Fetzer was born in Pasadena, California, on December 6, 1940, to a father who worked as an accountant in a welfare office in Los Angeles County,[20] and grew up in a neighboring city, Altadena.

[25] In the late 1970s, Fetzer received a National Science Foundation fellowship,[26] and contributed a chapter to a book on Hans Reichenbach.

[5] In the late 1990s, Fetzer was called to organize a symposium on philosophy of mind,[30] and authored textbooks on cognitive science and artificial intelligence.

[21] With Don "Four Arrows" Jacobs, Fetzer claimed that the 2002 airplane crash that killed US Senator Paul Wellstone was an assassination "by an out-of-control Republican cabal under the direction of" Karl Rove.

[8] He has asserted that the World Trade Center buildings collapsed by controlled demolitions or by high-tech weaponry, gaining further critical attention.

An article by Fetzer published by Iranian state-run Press TV and pro-Russian conspiracy theory and fake news website Veterans Today titled (by the latter) "Did Mossad death squads slaughter American children at Sandy Hook?"

[43] It was removed from circulation by its publisher, Moon Rock Books, after Sandy Hook parent Leonard Pozner won a defamation lawsuit against Fetzer in 2019.

[14][15][16] In December 2015 Iran's Tasnim News Agency published an interview with Fetzer where he claims the Charlie Hebdo shooting, the November 2015 Paris attacks, and the Islamic State beheading incidents were staged.

[19] Fetzer has also promoted theories that the Boston Marathon bombing, Parkland and Pulse nightclub shootings, and the Charlottesville car attack were hoaxes or classified training exercises, as he also alleged about Sandy Hook, and believes the Apollo Moon landings were faked.

[13] Fetzer contributed the foreword for a book entitled Breaking The Spell (2014) by Nicholas Kollerstrom, a work of Holocaust denial.