Young couple goes on van tour of US, boy comes back with van - no girl

I haven't been keeping up with this much at all. So this couple is out vacationing out west. One or both of them flip out. He kills her and hides the body then comes back home and acts like nothing happened then gets a lawyer because he knows someone will miss her. He realizes the heat will be too much, starts second-guessing his hiding place, maybe realizes that some camera footage will catch him or the phone he destroyed might have a tracking chip that survived. So then he goes on the run and is now missing.

Is that basically where we are now?
allegedly