Fred A. Leuchter, Jr., is the foremost expert on the design and fabrication of hardware, including homicidal gas chambers, used to execute convicted criminals in the United States. Leuchter is perhaps best known as the author of two controversial forensic reports on alleged German wartime extermination gas chambers. Leuchter designed and maintained gas chambers for several U.S. penal institutions. He was sent by Ernst Zündel to investigate Auschwitz, Majdanek, Dachau, Hartheim and other alleged "Nazi Death Camps" and "gassing facilities."
Dachau - The fraudulent stories of "extermination" and "homicidal gas chambers"
No "extermination camps" on German soil (or elsewhere in German-occupied territory) - Typhus epidemics the cause of mass deaths and emaciated bodies
Treblinka - Holohoaxers say 850,000 jews gassed to death - Australian scientists find no evidence whatsoever of mass graves
David Cole (jew) tours Auschwitz & interviews senior curator of Auschwitz Museum - Alleged "gas chamber" was "reconstructed" after the war by Soviets