A letter is posted on a famous WWII historian's site
http://www.fpp.co.uk/online/index.html written by a German imprisoned
at Auschwitz by the Soviets. He joins a long list - including the
Catholic Church in Poland, the International Red Cross - saying
"Ich war nämlich im Sommer 1945 in sowjetischer Gefangenschaft in
Auschwitz und weiß deshalb, daß es damals dort keine Gaskammern zur
Vergasung von Menschen gegeben hat .."
He was there in the Summer of 1945 and knows there were no gas
chambers for gassing people. He goes on to say he found the swimming
pool and mentions other amenities.
Later, he encountered two Poles who were in Auschwitz during the war.
They too said there were no gas chambers.
So, no photos, no documents, no autopsies showing death by gas,
reliable witnesses saying there were none. On the other side Jews
giving conflicting descriptions od the "gas chambers" ... and all of
them caught out lying on other occasions.
Who would you believe?