Odd.  Those I know in North Carolina claim it was a concerted effort by a disgruntled bunch determined to discredit him. That their antics, refusal to discuss things in a proper forum, prejudicial reporting by certain *ahem* "newspapers", etc.  had much to do with Fr. Riehl concluding the divisive tactics of those folks were harming the Church - and, of course, he was right.

Your "sources on the scene" bother to tell you how supported Fr. Riehl was?  Hiw the parish was actually increasing membership?? 
I suspect you sources are not as connected as you would have folks believe.