Ha ha, sorry for the lecture! But agreed with you on the disturbing part... especially because this is less than half the original image (the original is WAY too... unsettling). Cheers for your opinion though :)
Eventually after repeated shooting of innumerous unarmed children & mothers (above) and hearing their final fatal screeches for mercy; many resigned or even committed suicide due to psychological problems usually acquired by cruel, baseless genocide.
The gun-man was one of the Einsatzgruppen; a group created by Adolf Hitler to mass exterminate all Non-Germans. They were brain-washed into believing this was for the greater good of a new/better Germany... by killing over a million innocent people