What were three stories that some men shared on the boxcar about what they heard that the Nazis had done?

One man told the story of the Russian Jews and the ways they were slaughtered by soldiers with machine guns, after they were forced to liw down in the trenches. They slaughtered the Jews in layers, lining each layer with lime inbetween.

Another story had to do with the murder of a doctor, who was taken in the middle of performing surgery and killed with his own medical instruments. He was murdered in front of his family.

The last story involved a town located on the boundary of Poland where the entire population was forced inside the synagogue. The people were locked inside and burned.