After reading all available info, I also believe he left on his own accord. I also feel some info ,like video surveillance footage has not been released by LE . I feel because of what they (LE) have found (or not found) has them feeling a crime was not committed. I also feel that after interviewing co workers and close friends LE are comfortable with their conclusions. As for the front seat of the car being moved up ,it could also mean that someone either was in the backseat and needed to get out or something was retrieved from behind the seat on the floor requiring to be moved forward. The car is a 2004 not a 1964 ,being it's not a custom car ,or vintage so from a guy who it seems to me to have some money (judged by looking at the house) I don't put to much into him leaving it. Besides it sticks out like a sore thumb if he took it with him. I hope for the families sake he drops them a line. A point someone brought up was the headaches he was suffering from according to his wife, maybe this is playing a role in this whole thing. Maybe it was financial.... A couple of people show up for the search? friends/ relatives/co workers no shows? I think that is telling in itself..