[Gamblor]

I'll dumb it down a shade for ya, since you don't really seem to understand the concept.

When actively participating in an unlawful activity that is certain to cause death, and someone dies in the process of that activity, you are committing murder in every Court in the free world, even if there is no intent to actually kill.

In other words, the Nazis, in committing the atrocities they did (the unlawful activity), and creating conditions that were certain to cause death, if not from the gas then from disease, are guilty of one count of murder for each person they killed.

Manslaughter is only when the activity is not so inherently dangerous as to cause certain death, for example, a fistfight, hunting animals, or driving negligently. Everything else is murder. Of course, this only applies to the people who weren't already in the gas chambers, the gallows or within firing range.