And where exactly in your post, is Lindbergh an eyewitness to the torture and/or murder of Japanese soldiers?
The bottom line is, that what you have here, amounts to nothing more than hearsay...like it or not.
History, and truth, is not limited to what is acceptable in a court of law.
Lindbergh's diary came out in 1970, when plenty of veterans were alive to protest any inaccuracies. The fact that there were not thousands of veterans protesting the publication, enraged that their sacred honor was being trashed by Lindbergh, speaks volumes.
Obviously Lindbergh was telling the truth, and the veterans of the South Pacific new it.