In 1989 Irving reportedly denied the existence of gas chambers at Auschwitz .
In 1989 Irving reportedly claimed that unknown individuals dressed in Sturmabteilung uniforms committed the Reichskristallnacht crimes in November 1934 .
In 1989 Irving reportedly denied the existence of gas chambers at Auschwitz and claimed that unknown individuals dressed in Sturmabteilung uniforms committed the Reichskristallnacht crimes in November 1934 .