Himmler, the mass murderer

"Heinrich Himmler invented the SS and built the vast security, police and informant machinery of Nazi Germany. He later organized armed SS divisions that frightened them across Europe with their cruelty. Well, remember: he built the concentration Who was this man? his relationship with Hitler, to whom he obeyed until the last moment, and whom he worshiped as a god? How did he rebel against him in the end? "