The following came from a trial observer in Montana:
"Our code provides that a Grand Master must be tried for abuse of power, or unmasonic conduct if at least 5 sitting Worshipful Masters file charges with the Junior Past Grand Master. A week after our Grand Lodge Elections and Installation Grand Master Duffy appeared at the Grand Lodge Office and informed the Grand Secretary that he was removing him from office immediately. There was an announcement sent out (on orders from the Grand Master.) and after reviewing the code, and within a week of the event, 9 Sitting Worshipful Masters filed five charges of Abuse of power and unmasonic conduct with the Junior Past Grand Master. As required by code the JPGM assembled a Tribunal of himself and 4 other Past Grand Masters, served notice to the Grand Master and set the date for the trial. The trial was held on August 10th, and each side was allowed unlimited time to present their arguments. The arguments and closings actually took just over 2 hours. The Tribunal deliberated for about a half an hour and returned a verdict of guilty on all five charges. The code is specific. If found guilty of any of the charges, the only penalty is removal from office. The Grand Master was removed from office immediately. The entire trial was recorded by a certified court recorder, and transcripts will be released at some point."
I have received messages from brethren on both sides of this event, but this seems to be the most dispassionate description of events.
A document was forwarded to me concerning this action that is posted officially on the Grand Lodge of Montana website, with the statement of the MW Grand Master Thom Chisholm, dated August 25, 2012.
It can be seen at http://www.grandlodgemontana.org/forms/Grand%20Masters%20Message.pdf