Between you, me, and the fence post.... I don't think her ex left without her from the house and I'm positive the police know this. Right now IMO they are trying to find some link to her being in his car or finding a body with some forensic evidence, which after all of this time is going to be very hard. I think that the police are leaning on the news to try to make the perp complacent so he makes a mistake. They are not talking to the family since the ex is hanging around them and they don't want to give anything away. At some point he'll slip up and when he does the police will be there. You can bet your bottom dollar they are following him like a hawk.
The ex is bad news with a record of aggrivated assult, and numerous other charges that he has done time for, this to the point that he changed his last name legally (so google doesn't show him without a lot of effort) to make it easier to find work. He's also a black belt. If you met him on the street he's the type that would make you feel uncomfortable at first sight.
I have heard nothing except to give Jim T.E.S. info again.