It was Martin Bormann but he didn't work for the Communists. He worked for their bosses.
This is a great book on Bormann. Read the reviews on Amazon.
http://www.amazon.com/Martin-Bormann-Exile-Paul-Manning/dp/0818403098
Read it free:
http://spitfirelist.com/books/manning.pdf
After reading it start connecting the dots and it will explain why Germany is where it is today.
There is far too much detail in this book for it to be considered a kook conspiracy theory book.