Does anyone remember the case of the father who drove to visit his son after his wife passed away. The father eventually left to drive back home. His car was later found set ablaze at a rest stop by a highway worker. The fathers body was later found in a dumping area. I remember it being snow on the ground.

That was Dexter Stefonek, from Wisconsin I believe..

To my knowledge there has been no update, so I guess the killer is still at large

It was indeed Dexter, who was found near Glendive, Montana.

There have been no updates.

Thanks for the info. I have watched every episode at least 100 times but I can never remember the names.