Regardless of whether or not it's right, how is this legal? I had no idea you could be arrested for war crimes you were involved with over half a century ago, regardless of magnitude.
I believe there is no statute of limitations on murder in any state. I read a couple years ago about a guy arrested in Minnesota for a murder he committed in the 70s. Now granted that's far more recent than WWII, but really with the statute of limitations on any crime, might as well be the same, there's really no other crime you can be tried for from the 70s. So if killing just one person gets that, it makes sense killing far more would.