Check out this recent book written in Germany, by Germans, but available in English, by the Hamburger Institut für Sozialforschung (Hamburg Institute for Social Research):

"The German Army and Genocide: Crimes Against War Prisoners, Jews, and other Civilians in the East, 1939-1944"

Find it at: amazon.com

"No one who views this book can any longer doubt the complicity and cooperation of the general German armed forces, or Wehrmacht, in the murderous acts of Germany's ignominious Third Reich.

Literally hundreds of graphic and horrific photographs show average German soldiers shooting, hanging, bludgeoning, or otherwise mistreating, torturing, and murdering helpless..."

Wack and pzrwest, highly recommended to you both.