I wondered why they keep referring to him as elderly...there are several DW's on the court website, one in Thurston County that has a record for theft & looks like assault...she did have a restraining order against ex husband. Jerry, also Robert Jerome Smiley.
Sounding like some sort of brain injury & let's hope that the kid's had enough scouting to make a difference.
His middle initial is H. Age 49 (confirmed from online voter records) and there is nothing in WA court records pointing to a DHW anywhere in Puget Sound area, where he appears to have lived his enter life. The one is Spokane is a different DHW and also the one in Chelan. In other words nothing there, clean as a whistle as far as having any kind of "record."
I doubt highly her ex or anyone she knew had a thing to do with this, unless they somehow magically found a woman very lost in Olympia who had no cell phone with her, and every place she was seen either in person and/or on video, she and her son were alone.
Still sticking with theory she had some sort of injury or medical (brain) issue, and surely hope they are hunkered down someplace safe waiting to be found.
LE has dogs out there and are searching. Word was from her soon-to-be stepdaughter that the dogs picked up something yesterday, but lost trail. No idea where that was. If they caught a scent from the van and were able to track off that beach, then I'd believe she drove it down to that beach herself, past signs indicating dead end or no outlet (someone in area please verify, but IIRC somebody posted early on it was very well marked).
If they lost that track any place a vehicle could have picked them up, then I'd be seriously, seriously concerned they did not leave the general area under their own steam.
Given she took every wrong turn possible, I personally can't discount that in the dark, and if she had indeed attempted to turn the can around on the beach, that she somehow didn't manage to walk INTO the water, instead of away from it. But you'd have to be really messed up in the head to keep walking into water.
Too many homes off the beach where she could have knocked on a door. Makes no sense they wouldn't have done so, but nothing much about her travel pattern and actions after she got off I-5 in Olympia makes a bit of sense.