On the 17th he last posted in his whining ranting "quit post" about how there's a big conspiracy out to get him and he's quitting. He said don't ask, because "you don't want to know how far down the rabbit hole it goes" (so that's a clue right there as to his mental state).
In the same thread, another forum-goer says: That's not how you do it. Don't quit, just change your name and start new again.
On the 19th all of a sudden somebody announces he died and his identical twin brother is taking over acting like him...
I leave you all to judge for yourselves. Adding in a day's delay for him to think up the whole twin story it makes perfect sense. At least, perfect sense in the virtual community that fostered Voss and other malcontents.