In the early 1960s, Fr. Gereron Goldmann, a Franciscan stationed in Tokyo, felt moved by the Spirit to write his autobiography. Who was this Father Gereron, who the Japanese people knew only as a saintly priest? He was a former officer in Hitler’s personal dreaded SS!
from
http://www.catholiccompany.com/product_detail.cfm?ID=407
I havent bought the book yet as I had bookmarked the page on amazon then forgot about it for months until just now. It is my loss as his story sounds so incredible and remarkable I wouldn’t believe it unless he had actually written the book! The book is titled The Shadow of His Wings: The True Story of Fr. Gereon Goldmann and is available on Amazon
http://www.amazon.com/Shadow-His-Wings-Gereon-Goldmann/dp/0898707749
If you want to see what he looks like there is a photo on the cover of his book here
http://www.amazon.de/T%C3%B6dliche-Schatten-Tr%C3%B6stendes-Anhang-Lumpensammler/dp/3830671385
Catholic in Japan 
The book is excellent – easily read, entertaining and inspiring. I recently finished it and often use it for stories.