Horrors in history have always happened and still continue today. I recommend all to see this sight and learn and hope for peace and understanding between all creeds and nations...
Alternative website also in english, italian and french is:
www.dachau.info/cont/index.php?LANG=EN
and see also
www.humanitas-international.org/archive/dachau-liberation
It's only an hours drive (also by train/bus) out of Munich.