I jumped into my normal game, and lo and behold, I was viewing myself. Then popped into 3rd person, and it showed both of us. I walked around the tower, and then BAM dead. No gunshots, just dead.
Game quit unexpectedly when exiting game. Then on a later character, I go back into the same server I had just left - and once again, duplicate character.
For hope that my character wouldn't be killed off, I exited.