This is interesting - so there were multiple people who knew that there was a lone female hiking around the wilderness. That’s quite chilling.Yes you are right, I dont think we can rule out DC, but we cant rule out this guy in the red top either, or the guys she went rock climbing with on 15th november
She was clearly on the solo trip that she kept extending to escape her life circumstances for whatever reason and so perhaps DC’s strange behaviour is all to do with the guilt he feels for her being driven to foolhardily hike solo in the mountains in winter with worn shoes and not enough resources to buy adequate food supplies or fuel for the camper. As I understand it she hitched to the mountains from where she parked the camper rather than drove herself. Maybe if her camper had been parked closer to the trail she would have just headed back there instead of carrying on towards her tragic fate.