The exact same Jews that gave you all the testimony about the "death camps and the gas chambers" they also made a lot of other testimonies.
For example the following execution methods:
-Death by masturbation robots.
-Death by shitting, where the Jews were made to shitt on another Jew until they suffocated.
-dogs with perfect pitch that were trained to beat of someone in the orchestra played false and then kill them.
-Death by atomic rays. German atomic rays disintegrated the Jews completely.